wpa_supplicant/p2p_supplicant.c

   1 /*
   2  * wpa_supplicant - P2P
   3  * Copyright (c) 2009-2010, Atheros Communications
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "eloop.h"
  13 #include "common/ieee802_11_common.h"
  14 #include "common/ieee802_11_defs.h"
  15 #include "common/wpa_ctrl.h"
  16 #include "wps/wps_i.h"
  17 #include "p2p/p2p.h"
  18 #include "ap/hostapd.h"
  19 #include "ap/ap_config.h"
  20 #include "ap/p2p_hostapd.h"
  21 #include "eapol_supp/eapol_supp_sm.h"
  22 #include "rsn_supp/wpa.h"
  23 #include "wpa_supplicant_i.h"
  24 #include "driver_i.h"
  25 #include "ap.h"
  26 #include "config_ssid.h"
  27 #include "config.h"
  28 #include "notify.h"
  29 #include "scan.h"
  30 #include "bss.h"
  31 #include "offchannel.h"
  32 #include "wps_supplicant.h"
  33 #include "p2p_supplicant.h"
  34
  35
  36 /*
  37  * How many times to try to scan to find the GO before giving up on join
  38  * request.
  39  */
  40 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
  41
  42 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
  43
  44 #ifndef P2P_MAX_CLIENT_IDLE
  45 /*
  46  * How many seconds to try to reconnect to the GO when connection in P2P client
  47  * role has been lost.
  48  */
  49 #define P2P_MAX_CLIENT_IDLE 10
  50 #endif /* P2P_MAX_CLIENT_IDLE */
  51
  52 #ifndef P2P_MAX_INITIAL_CONN_WAIT
  53 /*
  54  * How many seconds to wait for initial 4-way handshake to get completed after
  55  * WPS provisioning step.
  56  */
  57 #define P2P_MAX_INITIAL_CONN_WAIT 10
  58 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
  59
  60 #ifndef P2P_CONCURRENT_SEARCH_DELAY
  61 #define P2P_CONCURRENT_SEARCH_DELAY 500
  62 #endif /* P2P_CONCURRENT_SEARCH_DELAY */
  63
  64 enum p2p_group_removal_reason {
  65         P2P_GROUP_REMOVAL_UNKNOWN,
  66         P2P_GROUP_REMOVAL_SILENT,
  67         P2P_GROUP_REMOVAL_FORMATION_FAILED,
  68         P2P_GROUP_REMOVAL_REQUESTED,
  69         P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
  70         P2P_GROUP_REMOVAL_UNAVAILABLE,
  71         P2P_GROUP_REMOVAL_GO_ENDING_SESSION
  72 };
  73
  74
  75 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
  76 static struct wpa_supplicant *
  77 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
  78                          int go);
  79 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
  80 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq);
  81 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
  82 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
  83                          const u8 *dev_addr, enum p2p_wps_method wps_method,
  84                          int auto_join);
  85 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
  86 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
  87 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
  88 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
  89 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
  90                                              void *timeout_ctx);
  91 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
  92                                         int group_added);
  93 static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
  94
  95
  96 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
  97                                       struct wpa_scan_results *scan_res)
  98 {
  99         size_t i;
 100
 101         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 102                 return;
 103
 104         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
 105                    (int) scan_res->num);
 106
 107         for (i = 0; i < scan_res->num; i++) {
 108                 struct wpa_scan_res *bss = scan_res->res[i];
 109                 struct os_time time_tmp_age, entry_ts;
 110                 time_tmp_age.sec = bss->age / 1000;
 111                 time_tmp_age.usec = (bss->age % 1000) * 1000;
 112                 os_time_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
 113                 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
 114                                          bss->freq, &entry_ts, bss->level,
 115                                          (const u8 *) (bss + 1),
 116                                          bss->ie_len) > 0)
 117                         break;
 118         }
 119
 120         p2p_scan_res_handled(wpa_s->global->p2p);
 121 }
 122
 123
 124 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
 125                          unsigned int num_req_dev_types,
 126                          const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
 127 {
 128         struct wpa_supplicant *wpa_s = ctx;
 129         struct wpa_supplicant *ifs;
 130         struct wpa_driver_scan_params params;
 131         int ret;
 132         struct wpabuf *wps_ie, *ies;
 133         int social_channels[] = { 2412, 2437, 2462, 0, 0 };
 134         size_t ielen;
 135
 136         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 137                 return -1;
 138
 139         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
 140                 if (ifs->sta_scan_pending &&
 141                     wpas_p2p_in_progress(wpa_s) == 2) {
 142                         wpa_printf(MSG_DEBUG, "Delaying P2P scan to allow "
 143                                    "pending station mode scan to be "
 144                                    "completed on interface %s", ifs->ifname);
 145                         wpa_s->global->p2p_cb_on_scan_complete = 1;
 146                         wpa_supplicant_req_scan(ifs, 0, 0);
 147                         return 1;
 148                 }
 149         }
 150
 151         os_memset(&params, 0, sizeof(params));
 152
 153         /* P2P Wildcard SSID */
 154         params.num_ssids = 1;
 155         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
 156         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
 157
 158         wpa_s->wps->dev.p2p = 1;
 159         wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
 160                                         wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
 161                                         num_req_dev_types, req_dev_types);
 162         if (wps_ie == NULL)
 163                 return -1;
 164
 165         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
 166         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
 167         if (ies == NULL) {
 168                 wpabuf_free(wps_ie);
 169                 return -1;
 170         }
 171         wpabuf_put_buf(ies, wps_ie);
 172         wpabuf_free(wps_ie);
 173
 174         p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
 175
 176         params.p2p_probe = 1;
 177         params.extra_ies = wpabuf_head(ies);
 178         params.extra_ies_len = wpabuf_len(ies);
 179
 180         switch (type) {
 181         case P2P_SCAN_SOCIAL:
 182                 params.freqs = social_channels;
 183                 break;
 184         case P2P_SCAN_FULL:
 185                 break;
 186         case P2P_SCAN_SOCIAL_PLUS_ONE:
 187                 social_channels[3] = freq;
 188                 params.freqs = social_channels;
 189                 break;
 190         }
 191
 192         ret = wpa_drv_scan(wpa_s, &params);
 193
 194         wpabuf_free(ies);
 195
 196         if (ret) {
 197                 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
 198                         if (ifs->scanning ||
 199                             ifs->scan_res_handler == wpas_p2p_scan_res_handler) {
 200                                 wpa_s->global->p2p_cb_on_scan_complete = 1;
 201                                 ret = 1;
 202                                 break;
 203                         }
 204                 }
 205         } else
 206                 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
 207
 208         return ret;
 209 }
 210
 211
 212 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
 213 {
 214         switch (p2p_group_interface) {
 215         case P2P_GROUP_INTERFACE_PENDING:
 216                 return WPA_IF_P2P_GROUP;
 217         case P2P_GROUP_INTERFACE_GO:
 218                 return WPA_IF_P2P_GO;
 219         case P2P_GROUP_INTERFACE_CLIENT:
 220                 return WPA_IF_P2P_CLIENT;
 221         }
 222
 223         return WPA_IF_P2P_GROUP;
 224 }
 225
 226
 227 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
 228                                                   const u8 *ssid,
 229                                                   size_t ssid_len, int *go)
 230 {
 231         struct wpa_ssid *s;
 232
 233         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 234                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 235                         if (s->disabled != 0 || !s->p2p_group ||
 236                             s->ssid_len != ssid_len ||
 237                             os_memcmp(ssid, s->ssid, ssid_len) != 0)
 238                                 continue;
 239                         if (s->mode == WPAS_MODE_P2P_GO &&
 240                             s != wpa_s->current_ssid)
 241                                 continue;
 242                         if (go)
 243                                 *go = s->mode == WPAS_MODE_P2P_GO;
 244                         return wpa_s;
 245                 }
 246         }
 247
 248         return NULL;
 249 }
 250
 251
 252 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
 253                                  enum p2p_group_removal_reason removal_reason)
 254 {
 255         struct wpa_ssid *ssid;
 256         char *gtype;
 257         const char *reason;
 258
 259         ssid = wpa_s->current_ssid;
 260         if (ssid == NULL) {
 261                 /*
 262                  * The current SSID was not known, but there may still be a
 263                  * pending P2P group interface waiting for provisioning or a
 264                  * P2P group that is trying to reconnect.
 265                  */
 266                 ssid = wpa_s->conf->ssid;
 267                 while (ssid) {
 268                         if (ssid->p2p_group && ssid->disabled != 2)
 269                                 break;
 270                         ssid = ssid->next;
 271                 }
 272                 if (ssid == NULL &&
 273                         wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
 274                 {
 275                         wpa_printf(MSG_ERROR, "P2P: P2P group interface "
 276                                    "not found");
 277                         return -1;
 278                 }
 279         }
 280         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
 281                 gtype = "GO";
 282         else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
 283                  (ssid && ssid->mode == WPAS_MODE_INFRA)) {
 284                 wpa_s->reassociate = 0;
 285                 wpa_s->disconnected = 1;
 286                 wpa_supplicant_deauthenticate(wpa_s,
 287                                               WLAN_REASON_DEAUTH_LEAVING);
 288                 gtype = "client";
 289         } else
 290                 gtype = "GO";
 291         if (wpa_s->cross_connect_in_use) {
 292                 wpa_s->cross_connect_in_use = 0;
 293                 wpa_msg(wpa_s->parent, MSG_INFO,
 294                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
 295                         wpa_s->ifname, wpa_s->cross_connect_uplink);
 296         }
 297         switch (removal_reason) {
 298         case P2P_GROUP_REMOVAL_REQUESTED:
 299                 reason = " reason=REQUESTED";
 300                 break;
 301         case P2P_GROUP_REMOVAL_FORMATION_FAILED:
 302                 reason = " reason=FORMATION_FAILED";
 303                 break;
 304         case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
 305                 reason = " reason=IDLE";
 306                 break;
 307         case P2P_GROUP_REMOVAL_UNAVAILABLE:
 308                 reason = " reason=UNAVAILABLE";
 309                 break;
 310         case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
 311                 reason = " reason=GO_ENDING_SESSION";
 312                 break;
 313         default:
 314                 reason = "";
 315                 break;
 316         }
 317         if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
 318                 wpa_msg(wpa_s->parent, MSG_INFO,
 319                         P2P_EVENT_GROUP_REMOVED "%s %s%s",
 320                         wpa_s->ifname, gtype, reason);
 321         }
 322
 323         if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
 324                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
 325         if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
 326                                  wpa_s->parent, NULL) > 0)
 327                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
 328                            "timeout");
 329
 330         if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
 331                 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
 332
 333         if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 334                 struct wpa_global *global;
 335                 char *ifname;
 336                 enum wpa_driver_if_type type;
 337                 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
 338                         wpa_s->ifname);
 339                 global = wpa_s->global;
 340                 ifname = os_strdup(wpa_s->ifname);
 341                 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
 342                 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
 343                 wpa_s = global->ifaces;
 344                 if (wpa_s && ifname)
 345                         wpa_drv_if_remove(wpa_s, type, ifname);
 346                 os_free(ifname);
 347                 return 1;
 348         }
 349
 350         wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
 351         if (ssid && (ssid->p2p_group ||
 352                      ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 353                      (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
 354                 int id = ssid->id;
 355                 if (ssid == wpa_s->current_ssid) {
 356                         wpa_sm_set_config(wpa_s->wpa, NULL);
 357                         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 358                         wpa_s->current_ssid = NULL;
 359                 }
 360                 /*
 361                  * Networks objects created during any P2P activities are not
 362                  * exposed out as they might/will confuse certain non-P2P aware
 363                  * applications since these network objects won't behave like
 364                  * regular ones.
 365                  *
 366                  * Likewise, we don't send out network removed signals for such
 367                  * network objects.
 368                  */
 369                 wpa_config_remove_network(wpa_s->conf, id);
 370                 wpa_supplicant_clear_status(wpa_s);
 371                 wpa_supplicant_cancel_sched_scan(wpa_s);
 372                 wpa_s->sta_scan_pending = 0;
 373         } else {
 374                 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
 375                            "found");
 376         }
 377         if (wpa_s->ap_iface)
 378                 wpa_supplicant_ap_deinit(wpa_s);
 379         else
 380                 wpa_drv_deinit_p2p_cli(wpa_s);
 381
 382         return 0;
 383 }
 384
 385
 386 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
 387                                      u8 *go_dev_addr,
 388                                      const u8 *ssid, size_t ssid_len)
 389 {
 390         struct wpa_bss *bss;
 391         const u8 *bssid;
 392         struct wpabuf *p2p;
 393         u8 group_capab;
 394         const u8 *addr;
 395
 396         if (wpa_s->go_params)
 397                 bssid = wpa_s->go_params->peer_interface_addr;
 398         else
 399                 bssid = wpa_s->bssid;
 400
 401         bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
 402         if (bss == NULL) {
 403                 u8 iface_addr[ETH_ALEN];
 404                 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
 405                                            iface_addr) == 0)
 406                         bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
 407         }
 408         if (bss == NULL) {
 409                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 410                            "group is persistent - BSS " MACSTR " not found",
 411                            MAC2STR(bssid));
 412                 return 0;
 413         }
 414
 415         p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
 416         if (p2p == NULL) {
 417                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 418                            "group is persistent - BSS " MACSTR
 419                            " did not include P2P IE", MAC2STR(bssid));
 420                 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
 421                             (u8 *) (bss + 1), bss->ie_len);
 422                 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
 423                             ((u8 *) bss + 1) + bss->ie_len,
 424                             bss->beacon_ie_len);
 425                 return 0;
 426         }
 427
 428         group_capab = p2p_get_group_capab(p2p);
 429         addr = p2p_get_go_dev_addr(p2p);
 430         wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
 431                    "group_capab=0x%x", group_capab);
 432         if (addr) {
 433                 os_memcpy(go_dev_addr, addr, ETH_ALEN);
 434                 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
 435                            MAC2STR(addr));
 436         } else
 437                 os_memset(go_dev_addr, 0, ETH_ALEN);
 438         wpabuf_free(p2p);
 439
 440         wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
 441                    "go_dev_addr=" MACSTR,
 442                    MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
 443
 444         return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
 445 }
 446
 447
 448 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
 449                                            struct wpa_ssid *ssid,
 450                                            const u8 *go_dev_addr)
 451 {
 452         struct wpa_ssid *s;
 453         int changed = 0;
 454
 455         wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
 456                    "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
 457         for (s = wpa_s->conf->ssid; s; s = s->next) {
 458                 if (s->disabled == 2 &&
 459                     os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
 460                     s->ssid_len == ssid->ssid_len &&
 461                     os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
 462                         break;
 463         }
 464
 465         if (s) {
 466                 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
 467                            "entry");
 468                 if (ssid->passphrase && !s->passphrase)
 469                         changed = 1;
 470                 else if (ssid->passphrase && s->passphrase &&
 471                          os_strcmp(ssid->passphrase, s->passphrase) != 0)
 472                         changed = 1;
 473         } else {
 474                 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
 475                            "entry");
 476                 changed = 1;
 477                 s = wpa_config_add_network(wpa_s->conf);
 478                 if (s == NULL)
 479                         return -1;
 480
 481                 /*
 482                  * Instead of network_added we emit persistent_group_added
 483                  * notification. Also to keep the defense checks in
 484                  * persistent_group obj registration method, we set the
 485                  * relevant flags in s to designate it as a persistent group.
 486                  */
 487                 s->p2p_group = 1;
 488                 s->p2p_persistent_group = 1;
 489                 wpas_notify_persistent_group_added(wpa_s, s);
 490                 wpa_config_set_network_defaults(s);
 491         }
 492
 493         s->p2p_group = 1;
 494         s->p2p_persistent_group = 1;
 495         s->disabled = 2;
 496         s->bssid_set = 1;
 497         os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
 498         s->mode = ssid->mode;
 499         s->auth_alg = WPA_AUTH_ALG_OPEN;
 500         s->key_mgmt = WPA_KEY_MGMT_PSK;
 501         s->proto = WPA_PROTO_RSN;
 502         s->pairwise_cipher = WPA_CIPHER_CCMP;
 503         s->export_keys = 1;
 504         if (ssid->passphrase) {
 505                 os_free(s->passphrase);
 506                 s->passphrase = os_strdup(ssid->passphrase);
 507         }
 508         if (ssid->psk_set) {
 509                 s->psk_set = 1;
 510                 os_memcpy(s->psk, ssid->psk, 32);
 511         }
 512         if (s->passphrase && !s->psk_set)
 513                 wpa_config_update_psk(s);
 514         if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
 515                 os_free(s->ssid);
 516                 s->ssid = os_malloc(ssid->ssid_len);
 517         }
 518         if (s->ssid) {
 519                 s->ssid_len = ssid->ssid_len;
 520                 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
 521         }
 522
 523 #ifndef CONFIG_NO_CONFIG_WRITE
 524         if (changed && wpa_s->conf->update_config &&
 525             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 526                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
 527         }
 528 #endif /* CONFIG_NO_CONFIG_WRITE */
 529
 530         return s->id;
 531 }
 532
 533
 534 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
 535                                                  const u8 *addr)
 536 {
 537         struct wpa_ssid *ssid, *s;
 538         u8 *n;
 539         size_t i;
 540         int found = 0;
 541
 542         ssid = wpa_s->current_ssid;
 543         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
 544             !ssid->p2p_persistent_group)
 545                 return;
 546
 547         for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
 548                 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
 549                         continue;
 550
 551                 if (s->ssid_len == ssid->ssid_len &&
 552                     os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
 553                         break;
 554         }
 555
 556         if (s == NULL)
 557                 return;
 558
 559         for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
 560                 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
 561                               ETH_ALEN) != 0)
 562                         continue;
 563
 564                 if (i == s->num_p2p_clients - 1)
 565                         return; /* already the most recent entry */
 566
 567                 /* move the entry to mark it most recent */
 568                 os_memmove(s->p2p_client_list + i * ETH_ALEN,
 569                            s->p2p_client_list + (i + 1) * ETH_ALEN,
 570                            (s->num_p2p_clients - i - 1) * ETH_ALEN);
 571                 os_memcpy(s->p2p_client_list +
 572                           (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
 573                 found = 1;
 574                 break;
 575         }
 576
 577         if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
 578                 n = os_realloc_array(s->p2p_client_list,
 579                                      s->num_p2p_clients + 1, ETH_ALEN);
 580                 if (n == NULL)
 581                         return;
 582                 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
 583                 s->p2p_client_list = n;
 584                 s->num_p2p_clients++;
 585         } else if (!found) {
 586                 /* Not enough room for an additional entry - drop the oldest
 587                  * entry */
 588                 os_memmove(s->p2p_client_list,
 589                            s->p2p_client_list + ETH_ALEN,
 590                            (s->num_p2p_clients - 1) * ETH_ALEN);
 591                 os_memcpy(s->p2p_client_list +
 592                           (s->num_p2p_clients - 1) * ETH_ALEN,
 593                           addr, ETH_ALEN);
 594         }
 595
 596 #ifndef CONFIG_NO_CONFIG_WRITE
 597         if (wpa_s->parent->conf->update_config &&
 598             wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
 599                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
 600 #endif /* CONFIG_NO_CONFIG_WRITE */
 601 }
 602
 603
 604 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
 605                                            int success)
 606 {
 607         struct wpa_ssid *ssid;
 608         const char *ssid_txt;
 609         int client;
 610         int persistent;
 611         u8 go_dev_addr[ETH_ALEN];
 612         int network_id = -1;
 613
 614         /*
 615          * This callback is likely called for the main interface. Update wpa_s
 616          * to use the group interface if a new interface was created for the
 617          * group.
 618          */
 619         if (wpa_s->global->p2p_group_formation)
 620                 wpa_s = wpa_s->global->p2p_group_formation;
 621         wpa_s->global->p2p_group_formation = NULL;
 622         wpa_s->p2p_in_provisioning = 0;
 623
 624         if (!success) {
 625                 wpa_msg(wpa_s->parent, MSG_INFO,
 626                         P2P_EVENT_GROUP_FORMATION_FAILURE);
 627                 wpas_p2p_group_delete(wpa_s,
 628                                       P2P_GROUP_REMOVAL_FORMATION_FAILED);
 629                 return;
 630         }
 631
 632         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
 633
 634         ssid = wpa_s->current_ssid;
 635         if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
 636                 ssid->mode = WPAS_MODE_P2P_GO;
 637                 p2p_group_notif_formation_done(wpa_s->p2p_group);
 638                 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
 639         }
 640
 641         persistent = 0;
 642         if (ssid) {
 643                 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
 644                 client = ssid->mode == WPAS_MODE_INFRA;
 645                 if (ssid->mode == WPAS_MODE_P2P_GO) {
 646                         persistent = ssid->p2p_persistent_group;
 647                         os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
 648                                   ETH_ALEN);
 649                 } else
 650                         persistent = wpas_p2p_persistent_group(wpa_s,
 651                                                                go_dev_addr,
 652                                                                ssid->ssid,
 653                                                                ssid->ssid_len);
 654         } else {
 655                 ssid_txt = "";
 656                 client = wpa_s->p2p_group_interface ==
 657                         P2P_GROUP_INTERFACE_CLIENT;
 658                 os_memset(go_dev_addr, 0, ETH_ALEN);
 659         }
 660
 661         wpa_s->show_group_started = 0;
 662         if (client) {
 663                 /*
 664                  * Indicate event only after successfully completed 4-way
 665                  * handshake, i.e., when the interface is ready for data
 666                  * packets.
 667                  */
 668                 wpa_s->show_group_started = 1;
 669         } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
 670                 char psk[65];
 671                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
 672                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 673                         "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
 674                         "%s",
 675                         wpa_s->ifname, ssid_txt, ssid->frequency, psk,
 676                         MAC2STR(go_dev_addr),
 677                         persistent ? " [PERSISTENT]" : "");
 678                 wpas_p2p_cross_connect_setup(wpa_s);
 679                 wpas_p2p_set_group_idle_timeout(wpa_s);
 680         } else {
 681                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 682                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 683                         "go_dev_addr=" MACSTR "%s",
 684                         wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
 685                         ssid && ssid->passphrase ? ssid->passphrase : "",
 686                         MAC2STR(go_dev_addr),
 687                         persistent ? " [PERSISTENT]" : "");
 688                 wpas_p2p_cross_connect_setup(wpa_s);
 689                 wpas_p2p_set_group_idle_timeout(wpa_s);
 690         }
 691
 692         if (persistent)
 693                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
 694                                                              ssid, go_dev_addr);
 695         if (network_id < 0 && ssid)
 696                 network_id = ssid->id;
 697         if (!client)
 698                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
 699 }
 700
 701
 702 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
 703                                            unsigned int freq,
 704                                            const u8 *dst, const u8 *src,
 705                                            const u8 *bssid,
 706                                            const u8 *data, size_t data_len,
 707                                            enum offchannel_send_action_result
 708                                            result)
 709 {
 710         enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
 711
 712         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
 713                 return;
 714         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
 715                 return;
 716
 717         switch (result) {
 718         case OFFCHANNEL_SEND_ACTION_SUCCESS:
 719                 res = P2P_SEND_ACTION_SUCCESS;
 720                 break;
 721         case OFFCHANNEL_SEND_ACTION_NO_ACK:
 722                 res = P2P_SEND_ACTION_NO_ACK;
 723                 break;
 724         case OFFCHANNEL_SEND_ACTION_FAILED:
 725                 res = P2P_SEND_ACTION_FAILED;
 726                 break;
 727         }
 728
 729         p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
 730
 731         if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
 732             wpa_s->pending_pd_before_join &&
 733             (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
 734              os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
 735             wpa_s->p2p_fallback_to_go_neg) {
 736                 wpa_s->pending_pd_before_join = 0;
 737                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
 738                         "during p2p_connect-auto");
 739                 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
 740                 return;
 741         }
 742 }
 743
 744
 745 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
 746                             const u8 *src, const u8 *bssid, const u8 *buf,
 747                             size_t len, unsigned int wait_time)
 748 {
 749         struct wpa_supplicant *wpa_s = ctx;
 750         return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
 751                                       wait_time,
 752                                       wpas_p2p_send_action_tx_status, 1);
 753 }
 754
 755
 756 static void wpas_send_action_done(void *ctx)
 757 {
 758         struct wpa_supplicant *wpa_s = ctx;
 759         offchannel_send_action_done(wpa_s);
 760 }
 761
 762
 763 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
 764                                     struct p2p_go_neg_results *params)
 765 {
 766         if (wpa_s->go_params == NULL) {
 767                 wpa_s->go_params = os_malloc(sizeof(*params));
 768                 if (wpa_s->go_params == NULL)
 769                         return -1;
 770         }
 771         os_memcpy(wpa_s->go_params, params, sizeof(*params));
 772         return 0;
 773 }
 774
 775
 776 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
 777                                     struct p2p_go_neg_results *res)
 778 {
 779         wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
 780                    MAC2STR(res->peer_interface_addr));
 781         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
 782                           res->ssid, res->ssid_len);
 783         wpa_supplicant_ap_deinit(wpa_s);
 784         wpas_copy_go_neg_results(wpa_s, res);
 785         if (res->wps_method == WPS_PBC)
 786                 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
 787         else {
 788                 u16 dev_pw_id = DEV_PW_DEFAULT;
 789                 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
 790                         dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
 791                 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
 792                                    wpa_s->p2p_pin, 1, dev_pw_id);
 793         }
 794 }
 795
 796
 797 static void p2p_go_configured(void *ctx, void *data)
 798 {
 799         struct wpa_supplicant *wpa_s = ctx;
 800         struct p2p_go_neg_results *params = data;
 801         struct wpa_ssid *ssid;
 802         int network_id = -1;
 803
 804         ssid = wpa_s->current_ssid;
 805         if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
 806                 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
 807                 if (wpa_s->global->p2p_group_formation == wpa_s)
 808                         wpa_s->global->p2p_group_formation = NULL;
 809                 if (os_strlen(params->passphrase) > 0) {
 810                         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 811                                 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 812                                 "go_dev_addr=" MACSTR "%s", wpa_s->ifname,
 813                                 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
 814                                 ssid->frequency, params->passphrase,
 815                                 MAC2STR(wpa_s->global->p2p_dev_addr),
 816                                 params->persistent_group ? " [PERSISTENT]" :
 817                                 "");
 818                 } else {
 819                         char psk[65];
 820                         wpa_snprintf_hex(psk, sizeof(psk), params->psk,
 821                                          sizeof(params->psk));
 822                         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 823                                 "%s GO ssid=\"%s\" freq=%d psk=%s "
 824                                 "go_dev_addr=" MACSTR "%s", wpa_s->ifname,
 825                                 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
 826                                 ssid->frequency, psk,
 827                                 MAC2STR(wpa_s->global->p2p_dev_addr),
 828                                 params->persistent_group ? " [PERSISTENT]" :
 829                                 "");
 830                 }
 831
 832                 if (params->persistent_group)
 833                         network_id = wpas_p2p_store_persistent_group(
 834                                 wpa_s->parent, ssid,
 835                                 wpa_s->global->p2p_dev_addr);
 836                 if (network_id < 0)
 837                         network_id = ssid->id;
 838                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
 839                 wpas_p2p_cross_connect_setup(wpa_s);
 840                 wpas_p2p_set_group_idle_timeout(wpa_s);
 841                 return;
 842         }
 843
 844         wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
 845         if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
 846                                               params->peer_interface_addr)) {
 847                 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
 848                            "filtering");
 849                 return;
 850         }
 851         if (params->wps_method == WPS_PBC)
 852                 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
 853                                           params->peer_device_addr);
 854         else if (wpa_s->p2p_pin[0])
 855                 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
 856                                           wpa_s->p2p_pin, NULL, 0, 0);
 857         os_free(wpa_s->go_params);
 858         wpa_s->go_params = NULL;
 859 }
 860
 861
 862 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
 863                               struct p2p_go_neg_results *params,
 864                               int group_formation)
 865 {
 866         struct wpa_ssid *ssid;
 867
 868         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
 869         if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
 870                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
 871                         "results");
 872                 return;
 873         }
 874
 875         ssid = wpa_config_add_network(wpa_s->conf);
 876         if (ssid == NULL) {
 877                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
 878                 return;
 879         }
 880
 881         wpa_s->show_group_started = 0;
 882
 883         wpa_config_set_network_defaults(ssid);
 884         ssid->temporary = 1;
 885         ssid->p2p_group = 1;
 886         ssid->p2p_persistent_group = params->persistent_group;
 887         ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
 888                 WPAS_MODE_P2P_GO;
 889         ssid->frequency = params->freq;
 890         ssid->ht40 = params->ht40;
 891         ssid->ssid = os_zalloc(params->ssid_len + 1);
 892         if (ssid->ssid) {
 893                 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
 894                 ssid->ssid_len = params->ssid_len;
 895         }
 896         ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 897         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 898         ssid->proto = WPA_PROTO_RSN;
 899         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 900         if (os_strlen(params->passphrase) > 0) {
 901                 ssid->passphrase = os_strdup(params->passphrase);
 902                 if (ssid->passphrase == NULL) {
 903                         wpa_msg(wpa_s, MSG_ERROR, "P2P: Failed to copy "
 904                                 "passphrase for GO");
 905                         wpa_config_remove_network(wpa_s->conf, ssid->id);
 906                         return;
 907                 }
 908         } else
 909                 ssid->passphrase = NULL;
 910         ssid->psk_set = params->psk_set;
 911         if (ssid->psk_set)
 912                 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
 913         else if (ssid->passphrase)
 914                 wpa_config_update_psk(ssid);
 915         ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
 916
 917         wpa_s->ap_configured_cb = p2p_go_configured;
 918         wpa_s->ap_configured_cb_ctx = wpa_s;
 919         wpa_s->ap_configured_cb_data = wpa_s->go_params;
 920         wpa_s->connect_without_scan = ssid;
 921         wpa_s->reassociate = 1;
 922         wpa_s->disconnected = 0;
 923         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
 924                 "start GO)");
 925         wpa_supplicant_req_scan(wpa_s, 0, 0);
 926 }
 927
 928
 929 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
 930                                   const struct wpa_supplicant *src)
 931 {
 932         struct wpa_config *d;
 933         const struct wpa_config *s;
 934
 935         d = dst->conf;
 936         s = src->conf;
 937
 938 #define C(n) if (s->n) d->n = os_strdup(s->n)
 939         C(device_name);
 940         C(manufacturer);
 941         C(model_name);
 942         C(model_number);
 943         C(serial_number);
 944         C(config_methods);
 945 #undef C
 946
 947         os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
 948         os_memcpy(d->sec_device_type, s->sec_device_type,
 949                   sizeof(d->sec_device_type));
 950         d->num_sec_device_types = s->num_sec_device_types;
 951
 952         d->p2p_group_idle = s->p2p_group_idle;
 953         d->p2p_intra_bss = s->p2p_intra_bss;
 954         d->persistent_reconnect = s->persistent_reconnect;
 955         d->max_num_sta = s->max_num_sta;
 956         d->pbc_in_m1 = s->pbc_in_m1;
 957 }
 958
 959
 960 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
 961                                         enum wpa_driver_if_type type)
 962 {
 963         char ifname[120], force_ifname[120];
 964
 965         if (wpa_s->pending_interface_name[0]) {
 966                 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
 967                            "- skip creation of a new one");
 968                 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
 969                         wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
 970                                    "unknown?! ifname='%s'",
 971                                    wpa_s->pending_interface_name);
 972                         return -1;
 973                 }
 974                 return 0;
 975         }
 976
 977         os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
 978                     wpa_s->p2p_group_idx);
 979         if (os_strlen(ifname) >= IFNAMSIZ &&
 980             os_strlen(wpa_s->ifname) < IFNAMSIZ) {
 981                 /* Try to avoid going over the IFNAMSIZ length limit */
 982                 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
 983                             wpa_s->p2p_group_idx);
 984         }
 985         force_ifname[0] = '\0';
 986
 987         wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
 988                    ifname);
 989         wpa_s->p2p_group_idx++;
 990
 991         wpa_s->pending_interface_type = type;
 992         if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
 993                            wpa_s->pending_interface_addr, NULL) < 0) {
 994                 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
 995                            "interface");
 996                 return -1;
 997         }
 998
 999         if (force_ifname[0]) {
1000                 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1001                            force_ifname);
1002                 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1003                            sizeof(wpa_s->pending_interface_name));
1004         } else
1005                 os_strlcpy(wpa_s->pending_interface_name, ifname,
1006                            sizeof(wpa_s->pending_interface_name));
1007         wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1008                    MACSTR, wpa_s->pending_interface_name,
1009                    MAC2STR(wpa_s->pending_interface_addr));
1010
1011         return 0;
1012 }
1013
1014
1015 static void wpas_p2p_remove_pending_group_interface(
1016         struct wpa_supplicant *wpa_s)
1017 {
1018         if (!wpa_s->pending_interface_name[0] ||
1019             is_zero_ether_addr(wpa_s->pending_interface_addr))
1020                 return; /* No pending virtual interface */
1021
1022         wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1023                    wpa_s->pending_interface_name);
1024         wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1025                           wpa_s->pending_interface_name);
1026         os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1027         wpa_s->pending_interface_name[0] = '\0';
1028 }
1029
1030
1031 static struct wpa_supplicant *
1032 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1033 {
1034         struct wpa_interface iface;
1035         struct wpa_supplicant *group_wpa_s;
1036
1037         if (!wpa_s->pending_interface_name[0]) {
1038                 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1039                 if (!wpas_p2p_create_iface(wpa_s))
1040                         return NULL;
1041                 /*
1042                  * Something has forced us to remove the pending interface; try
1043                  * to create a new one and hope for the best that we will get
1044                  * the same local address.
1045                  */
1046                 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1047                                                  WPA_IF_P2P_CLIENT) < 0)
1048                         return NULL;
1049         }
1050
1051         os_memset(&iface, 0, sizeof(iface));
1052         iface.ifname = wpa_s->pending_interface_name;
1053         iface.driver = wpa_s->driver->name;
1054         iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1055         iface.driver_param = wpa_s->conf->driver_param;
1056         group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1057         if (group_wpa_s == NULL) {
1058                 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1059                            "wpa_supplicant interface");
1060                 return NULL;
1061         }
1062         wpa_s->pending_interface_name[0] = '\0';
1063         group_wpa_s->parent = wpa_s;
1064         group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1065                 P2P_GROUP_INTERFACE_CLIENT;
1066         wpa_s->global->p2p_group_formation = group_wpa_s;
1067
1068         wpas_p2p_clone_config(group_wpa_s, wpa_s);
1069
1070         return group_wpa_s;
1071 }
1072
1073
1074 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1075                                              void *timeout_ctx)
1076 {
1077         struct wpa_supplicant *wpa_s = eloop_ctx;
1078         wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1079         if (wpa_s->global->p2p)
1080                 p2p_group_formation_failed(wpa_s->global->p2p);
1081         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1082                 wpa_drv_p2p_group_formation_failed(wpa_s);
1083         wpas_group_formation_completed(wpa_s, 0);
1084 }
1085
1086
1087 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1088 {
1089         struct wpa_supplicant *wpa_s = ctx;
1090
1091         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1092                 wpa_drv_cancel_remain_on_channel(wpa_s);
1093                 wpa_s->off_channel_freq = 0;
1094                 wpa_s->roc_waiting_drv_freq = 0;
1095         }
1096
1097         if (res->status) {
1098                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
1099                         res->status);
1100                 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1101                 wpas_p2p_remove_pending_group_interface(wpa_s);
1102                 return;
1103         }
1104
1105         if (wpa_s->p2p_go_ht40)
1106                 res->ht40 = 1;
1107
1108         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
1109         wpas_notify_p2p_go_neg_completed(wpa_s, res);
1110
1111         if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1112                 struct wpa_ssid *ssid;
1113                 ssid = wpa_config_get_network(wpa_s->conf,
1114                                               wpa_s->p2p_persistent_id);
1115                 if (ssid && ssid->disabled == 2 &&
1116                     ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1117                         size_t len = os_strlen(ssid->passphrase);
1118                         wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1119                                    "on requested persistent group");
1120                         os_memcpy(res->passphrase, ssid->passphrase, len);
1121                         res->passphrase[len] = '\0';
1122                 }
1123         }
1124
1125         if (wpa_s->create_p2p_iface) {
1126                 struct wpa_supplicant *group_wpa_s =
1127                         wpas_p2p_init_group_interface(wpa_s, res->role_go);
1128                 if (group_wpa_s == NULL) {
1129                         wpas_p2p_remove_pending_group_interface(wpa_s);
1130                         return;
1131                 }
1132                 if (group_wpa_s != wpa_s) {
1133                         os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1134                                   sizeof(group_wpa_s->p2p_pin));
1135                         group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1136                 }
1137                 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1138                 wpa_s->pending_interface_name[0] = '\0';
1139                 group_wpa_s->p2p_in_provisioning = 1;
1140
1141                 if (res->role_go)
1142                         wpas_start_wps_go(group_wpa_s, res, 1);
1143                 else
1144                         wpas_start_wps_enrollee(group_wpa_s, res);
1145         } else {
1146                 wpa_s->p2p_in_provisioning = 1;
1147                 wpa_s->global->p2p_group_formation = wpa_s;
1148
1149                 if (res->role_go)
1150                         wpas_start_wps_go(wpa_s, res, 1);
1151                 else
1152                         wpas_start_wps_enrollee(ctx, res);
1153         }
1154
1155         wpa_s->p2p_long_listen = 0;
1156         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1157
1158         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1159         eloop_register_timeout(15 + res->peer_config_timeout / 100,
1160                                (res->peer_config_timeout % 100) * 10000,
1161                                wpas_p2p_group_formation_timeout, wpa_s, NULL);
1162 }
1163
1164
1165 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1166 {
1167         struct wpa_supplicant *wpa_s = ctx;
1168         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1169                 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1170
1171         wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1172 }
1173
1174
1175 void wpas_dev_found(void *ctx, const u8 *addr,
1176                     const struct p2p_peer_info *info,
1177                     int new_device)
1178 {
1179 #ifndef CONFIG_NO_STDOUT_DEBUG
1180         struct wpa_supplicant *wpa_s = ctx;
1181         char devtype[WPS_DEV_TYPE_BUFSIZE];
1182
1183         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1184                 " p2p_dev_addr=" MACSTR
1185                 " pri_dev_type=%s name='%s' config_methods=0x%x "
1186                 "dev_capab=0x%x group_capab=0x%x",
1187                 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1188                 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1189                                      sizeof(devtype)),
1190                 info->device_name, info->config_methods,
1191                 info->dev_capab, info->group_capab);
1192 #endif /* CONFIG_NO_STDOUT_DEBUG */
1193
1194         wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1195 }
1196
1197
1198 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1199 {
1200         struct wpa_supplicant *wpa_s = ctx;
1201
1202         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1203                 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1204
1205         wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1206 }
1207
1208
1209 static int wpas_start_listen(void *ctx, unsigned int freq,
1210                              unsigned int duration,
1211                              const struct wpabuf *probe_resp_ie)
1212 {
1213         struct wpa_supplicant *wpa_s = ctx;
1214
1215         wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1216
1217         if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1218                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1219                            "report received Probe Request frames");
1220                 return -1;
1221         }
1222
1223         wpa_s->pending_listen_freq = freq;
1224         wpa_s->pending_listen_duration = duration;
1225
1226         if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1227                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1228                            "to remain on channel (%u MHz) for Listen "
1229                            "state", freq);
1230                 wpa_s->pending_listen_freq = 0;
1231                 return -1;
1232         }
1233         wpa_s->off_channel_freq = 0;
1234         wpa_s->roc_waiting_drv_freq = freq;
1235
1236         return 0;
1237 }
1238
1239
1240 static void wpas_stop_listen(void *ctx)
1241 {
1242         struct wpa_supplicant *wpa_s = ctx;
1243         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1244                 wpa_drv_cancel_remain_on_channel(wpa_s);
1245                 wpa_s->off_channel_freq = 0;
1246                 wpa_s->roc_waiting_drv_freq = 0;
1247         }
1248         wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1249         wpa_drv_probe_req_report(wpa_s, 0);
1250 }
1251
1252
1253 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1254 {
1255         struct wpa_supplicant *wpa_s = ctx;
1256         return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
1257 }
1258
1259
1260 /*
1261  * DNS Header section is used only to calculate compression pointers, so the
1262  * contents of this data does not matter, but the length needs to be reserved
1263  * in the virtual packet.
1264  */
1265 #define DNS_HEADER_LEN 12
1266
1267 /*
1268  * 27-octet in-memory packet from P2P specification containing two implied
1269  * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
1270  */
1271 #define P2P_SD_IN_MEMORY_LEN 27
1272
1273 static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
1274                                        u8 **spos, const u8 *end)
1275 {
1276         while (*spos < end) {
1277                 u8 val = ((*spos)[0] & 0xc0) >> 6;
1278                 int len;
1279
1280                 if (val == 1 || val == 2) {
1281                         /* These are reserved values in RFC 1035 */
1282                         wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1283                                    "sequence starting with 0x%x", val);
1284                         return -1;
1285                 }
1286
1287                 if (val == 3) {
1288                         u16 offset;
1289                         u8 *spos_tmp;
1290
1291                         /* Offset */
1292                         if (*spos + 2 > end) {
1293                                 wpa_printf(MSG_DEBUG, "P2P: No room for full "
1294                                            "DNS offset field");
1295                                 return -1;
1296                         }
1297
1298                         offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
1299                         if (offset >= *spos - start) {
1300                                 wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
1301                                            "pointer offset %u", offset);
1302                                 return -1;
1303                         }
1304
1305                         (*spos) += 2;
1306                         spos_tmp = start + offset;
1307                         return p2p_sd_dns_uncompress_label(upos, uend, start,
1308                                                            &spos_tmp,
1309                                                            *spos - 2);
1310                 }
1311
1312                 /* Label */
1313                 len = (*spos)[0] & 0x3f;
1314                 if (len == 0)
1315                         return 0;
1316
1317                 (*spos)++;
1318                 if (*spos + len > end) {
1319                         wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1320                                    "sequence - no room for label with length "
1321                                    "%u", len);
1322                         return -1;
1323                 }
1324
1325                 if (*upos + len + 2 > uend)
1326                         return -2;
1327
1328                 os_memcpy(*upos, *spos, len);
1329                 *spos += len;
1330                 *upos += len;
1331                 (*upos)[0] = '.';
1332                 (*upos)++;
1333                 (*upos)[0] = '\0';
1334         }
1335
1336         return 0;
1337 }
1338
1339
1340 /* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
1341  * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
1342  * not large enough */
1343 static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
1344                                  size_t msg_len, size_t offset)
1345 {
1346         /* 27-octet in-memory packet from P2P specification */
1347         const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
1348                 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
1349         u8 *tmp, *end, *spos;
1350         char *upos, *uend;
1351         int ret = 0;
1352
1353         if (buf_len < 2)
1354                 return -1;
1355         if (offset > msg_len)
1356                 return -1;
1357
1358         tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
1359         if (tmp == NULL)
1360                 return -1;
1361         spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
1362         end = spos + msg_len;
1363         spos += offset;
1364
1365         os_memset(tmp, 0, DNS_HEADER_LEN);
1366         os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
1367         os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
1368
1369         upos = buf;
1370         uend = buf + buf_len;
1371
1372         ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
1373         if (ret) {
1374                 os_free(tmp);
1375                 return ret;
1376         }
1377
1378         if (upos == buf) {
1379                 upos[0] = '.';
1380                 upos[1] = '\0';
1381         } else if (upos[-1] == '.')
1382                 upos[-1] = '\0';
1383
1384         os_free(tmp);
1385         return 0;
1386 }
1387
1388
1389 static struct p2p_srv_bonjour *
1390 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1391                              const struct wpabuf *query)
1392 {
1393         struct p2p_srv_bonjour *bsrv;
1394         size_t len;
1395
1396         len = wpabuf_len(query);
1397         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1398                          struct p2p_srv_bonjour, list) {
1399                 if (len == wpabuf_len(bsrv->query) &&
1400                     os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1401                               len) == 0)
1402                         return bsrv;
1403         }
1404         return NULL;
1405 }
1406
1407
1408 static struct p2p_srv_upnp *
1409 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1410                           const char *service)
1411 {
1412         struct p2p_srv_upnp *usrv;
1413
1414         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1415                          struct p2p_srv_upnp, list) {
1416                 if (version == usrv->version &&
1417                     os_strcmp(service, usrv->service) == 0)
1418                         return usrv;
1419         }
1420         return NULL;
1421 }
1422
1423
1424 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1425                                         u8 srv_trans_id)
1426 {
1427         u8 *len_pos;
1428
1429         if (wpabuf_tailroom(resp) < 5)
1430                 return;
1431
1432         /* Length (to be filled) */
1433         len_pos = wpabuf_put(resp, 2);
1434         wpabuf_put_u8(resp, srv_proto);
1435         wpabuf_put_u8(resp, srv_trans_id);
1436         /* Status Code */
1437         wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1438         /* Response Data: empty */
1439         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1440 }
1441
1442
1443 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1444                                 struct wpabuf *resp, u8 srv_trans_id)
1445 {
1446         struct p2p_srv_bonjour *bsrv;
1447         u8 *len_pos;
1448
1449         wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1450
1451         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1452                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1453                 return;
1454         }
1455
1456         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1457                          struct p2p_srv_bonjour, list) {
1458                 if (wpabuf_tailroom(resp) <
1459                     5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1460                         return;
1461                 /* Length (to be filled) */
1462                 len_pos = wpabuf_put(resp, 2);
1463                 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1464                 wpabuf_put_u8(resp, srv_trans_id);
1465                 /* Status Code */
1466                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1467                 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1468                                   wpabuf_head(bsrv->resp),
1469                                   wpabuf_len(bsrv->resp));
1470                 /* Response Data */
1471                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1472                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1473                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1474                              2);
1475         }
1476 }
1477
1478
1479 static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
1480                                size_t query_len)
1481 {
1482         char str_rx[256], str_srv[256];
1483
1484         if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
1485                 return 0; /* Too short to include DNS Type and Version */
1486         if (os_memcmp(query + query_len - 3,
1487                       wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
1488                       3) != 0)
1489                 return 0; /* Mismatch in DNS Type or Version */
1490         if (query_len == wpabuf_len(bsrv->query) &&
1491             os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
1492                 return 1; /* Binary match */
1493
1494         if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
1495                                   0))
1496                 return 0; /* Failed to uncompress query */
1497         if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
1498                                   wpabuf_head(bsrv->query),
1499                                   wpabuf_len(bsrv->query) - 3, 0))
1500                 return 0; /* Failed to uncompress service */
1501
1502         return os_strcmp(str_rx, str_srv) == 0;
1503 }
1504
1505
1506 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1507                                 struct wpabuf *resp, u8 srv_trans_id,
1508                                 const u8 *query, size_t query_len)
1509 {
1510         struct p2p_srv_bonjour *bsrv;
1511         u8 *len_pos;
1512         int matches = 0;
1513
1514         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1515                           query, query_len);
1516         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1517                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1518                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1519                                             srv_trans_id);
1520                 return;
1521         }
1522
1523         if (query_len == 0) {
1524                 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1525                 return;
1526         }
1527
1528         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1529                          struct p2p_srv_bonjour, list) {
1530                 if (!match_bonjour_query(bsrv, query, query_len))
1531                         continue;
1532
1533                 if (wpabuf_tailroom(resp) <
1534                     5 + query_len + wpabuf_len(bsrv->resp))
1535                         return;
1536
1537                 matches++;
1538
1539                 /* Length (to be filled) */
1540                 len_pos = wpabuf_put(resp, 2);
1541                 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1542                 wpabuf_put_u8(resp, srv_trans_id);
1543
1544                 /* Status Code */
1545                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1546                 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1547                                   wpabuf_head(bsrv->resp),
1548                                   wpabuf_len(bsrv->resp));
1549
1550                 /* Response Data */
1551                 wpabuf_put_data(resp, query, query_len); /* Key */
1552                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1553
1554                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1555         }
1556
1557         if (matches == 0) {
1558                 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1559                            "available");
1560                 if (wpabuf_tailroom(resp) < 5)
1561                         return;
1562
1563                 /* Length (to be filled) */
1564                 len_pos = wpabuf_put(resp, 2);
1565                 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1566                 wpabuf_put_u8(resp, srv_trans_id);
1567
1568                 /* Status Code */
1569                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1570                 /* Response Data: empty */
1571                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1572                              2);
1573         }
1574 }
1575
1576
1577 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1578                              struct wpabuf *resp, u8 srv_trans_id)
1579 {
1580         struct p2p_srv_upnp *usrv;
1581         u8 *len_pos;
1582
1583         wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1584
1585         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1586                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1587                 return;
1588         }
1589
1590         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1591                          struct p2p_srv_upnp, list) {
1592                 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1593                         return;
1594
1595                 /* Length (to be filled) */
1596                 len_pos = wpabuf_put(resp, 2);
1597                 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1598                 wpabuf_put_u8(resp, srv_trans_id);
1599
1600                 /* Status Code */
1601                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1602                 /* Response Data */
1603                 wpabuf_put_u8(resp, usrv->version);
1604                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1605                            usrv->service);
1606                 wpabuf_put_str(resp, usrv->service);
1607                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1608                              2);
1609         }
1610 }
1611
1612
1613 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1614                              struct wpabuf *resp, u8 srv_trans_id,
1615                              const u8 *query, size_t query_len)
1616 {
1617         struct p2p_srv_upnp *usrv;
1618         u8 *len_pos;
1619         u8 version;
1620         char *str;
1621         int count = 0;
1622
1623         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1624                           query, query_len);
1625
1626         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1627                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1628                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1629                                             srv_trans_id);
1630                 return;
1631         }
1632
1633         if (query_len == 0) {
1634                 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1635                 return;
1636         }
1637
1638         if (wpabuf_tailroom(resp) < 5)
1639                 return;
1640
1641         /* Length (to be filled) */
1642         len_pos = wpabuf_put(resp, 2);
1643         wpabuf_put_u8(resp, P2P_SERV_UPNP);
1644         wpabuf_put_u8(resp, srv_trans_id);
1645
1646         version = query[0];
1647         str = os_malloc(query_len);
1648         if (str == NULL)
1649                 return;
1650         os_memcpy(str, query + 1, query_len - 1);
1651         str[query_len - 1] = '\0';
1652
1653         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1654                          struct p2p_srv_upnp, list) {
1655                 if (version != usrv->version)
1656                         continue;
1657
1658                 if (os_strcmp(str, "ssdp:all") != 0 &&
1659                     os_strstr(usrv->service, str) == NULL)
1660                         continue;
1661
1662                 if (wpabuf_tailroom(resp) < 2)
1663                         break;
1664                 if (count == 0) {
1665                         /* Status Code */
1666                         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1667                         /* Response Data */
1668                         wpabuf_put_u8(resp, version);
1669                 } else
1670                         wpabuf_put_u8(resp, ',');
1671
1672                 count++;
1673
1674                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1675                            usrv->service);
1676                 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1677                         break;
1678                 wpabuf_put_str(resp, usrv->service);
1679         }
1680         os_free(str);
1681
1682         if (count == 0) {
1683                 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1684                            "available");
1685                 /* Status Code */
1686                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1687                 /* Response Data: empty */
1688         }
1689
1690         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1691 }
1692
1693
1694 #ifdef CONFIG_WIFI_DISPLAY
1695 static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
1696                             struct wpabuf *resp, u8 srv_trans_id,
1697                             const u8 *query, size_t query_len)
1698 {
1699         const u8 *pos;
1700         u8 role;
1701         u8 *len_pos;
1702
1703         wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
1704
1705         if (!wpa_s->global->wifi_display) {
1706                 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
1707                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
1708                                             srv_trans_id);
1709                 return;
1710         }
1711
1712         if (query_len < 1) {
1713                 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
1714                            "Role");
1715                 return;
1716         }
1717
1718         if (wpabuf_tailroom(resp) < 5)
1719                 return;
1720
1721         pos = query;
1722         role = *pos++;
1723         wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
1724
1725         /* TODO: role specific handling */
1726
1727         /* Length (to be filled) */
1728         len_pos = wpabuf_put(resp, 2);
1729         wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
1730         wpabuf_put_u8(resp, srv_trans_id);
1731         wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
1732
1733         while (pos < query + query_len) {
1734                 if (*pos < MAX_WFD_SUBELEMS &&
1735                     wpa_s->global->wfd_subelem[*pos] &&
1736                     wpabuf_tailroom(resp) >=
1737                     wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
1738                         wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
1739                                    "subelement %u", *pos);
1740                         wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
1741                 }
1742                 pos++;
1743         }
1744
1745         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1746 }
1747 #endif /* CONFIG_WIFI_DISPLAY */
1748
1749
1750 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1751                      u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1752 {
1753         struct wpa_supplicant *wpa_s = ctx;
1754         const u8 *pos = tlvs;
1755         const u8 *end = tlvs + tlvs_len;
1756         const u8 *tlv_end;
1757         u16 slen;
1758         struct wpabuf *resp;
1759         u8 srv_proto, srv_trans_id;
1760         size_t buf_len;
1761         char *buf;
1762
1763         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1764                     tlvs, tlvs_len);
1765         buf_len = 2 * tlvs_len + 1;
1766         buf = os_malloc(buf_len);
1767         if (buf) {
1768                 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1769                 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1770                              MACSTR " %u %u %s",
1771                              freq, MAC2STR(sa), dialog_token, update_indic,
1772                              buf);
1773                 os_free(buf);
1774         }
1775
1776         if (wpa_s->p2p_sd_over_ctrl_iface) {
1777                 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1778                                            update_indic, tlvs, tlvs_len);
1779                 return; /* to be processed by an external program */
1780         }
1781
1782         resp = wpabuf_alloc(10000);
1783         if (resp == NULL)
1784                 return;
1785
1786         while (pos + 1 < end) {
1787                 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1788                 slen = WPA_GET_LE16(pos);
1789                 pos += 2;
1790                 if (pos + slen > end || slen < 2) {
1791                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1792                                    "length");
1793                         wpabuf_free(resp);
1794                         return;
1795                 }
1796                 tlv_end = pos + slen;
1797
1798                 srv_proto = *pos++;
1799                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1800                            srv_proto);
1801                 srv_trans_id = *pos++;
1802                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1803                            srv_trans_id);
1804
1805                 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1806                             pos, tlv_end - pos);
1807
1808
1809                 if (wpa_s->force_long_sd) {
1810                         wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1811                                    "response");
1812                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1813                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1814                         goto done;
1815                 }
1816
1817                 switch (srv_proto) {
1818                 case P2P_SERV_ALL_SERVICES:
1819                         wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1820                                    "for all services");
1821                         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1822                             dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1823                                 wpa_printf(MSG_DEBUG, "P2P: No service "
1824                                            "discovery protocols available");
1825                                 wpas_sd_add_proto_not_avail(
1826                                         resp, P2P_SERV_ALL_SERVICES,
1827                                         srv_trans_id);
1828                                 break;
1829                         }
1830                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1831                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1832                         break;
1833                 case P2P_SERV_BONJOUR:
1834                         wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1835                                             pos, tlv_end - pos);
1836                         break;
1837                 case P2P_SERV_UPNP:
1838                         wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1839                                          pos, tlv_end - pos);
1840                         break;
1841 #ifdef CONFIG_WIFI_DISPLAY
1842                 case P2P_SERV_WIFI_DISPLAY:
1843                         wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
1844                                         pos, tlv_end - pos);
1845                         break;
1846 #endif /* CONFIG_WIFI_DISPLAY */
1847                 default:
1848                         wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1849                                    "protocol %u", srv_proto);
1850                         wpas_sd_add_proto_not_avail(resp, srv_proto,
1851                                                     srv_trans_id);
1852                         break;
1853                 }
1854
1855                 pos = tlv_end;
1856         }
1857
1858 done:
1859         wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1860                                    update_indic, tlvs, tlvs_len);
1861
1862         wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1863
1864         wpabuf_free(resp);
1865 }
1866
1867
1868 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1869                       const u8 *tlvs, size_t tlvs_len)
1870 {
1871         struct wpa_supplicant *wpa_s = ctx;
1872         const u8 *pos = tlvs;
1873         const u8 *end = tlvs + tlvs_len;
1874         const u8 *tlv_end;
1875         u16 slen;
1876         size_t buf_len;
1877         char *buf;
1878
1879         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1880                     tlvs, tlvs_len);
1881         if (tlvs_len > 1500) {
1882                 /* TODO: better way for handling this */
1883                 wpa_msg_ctrl(wpa_s, MSG_INFO,
1884                              P2P_EVENT_SERV_DISC_RESP MACSTR
1885                              " %u <long response: %u bytes>",
1886                              MAC2STR(sa), update_indic,
1887                              (unsigned int) tlvs_len);
1888         } else {
1889                 buf_len = 2 * tlvs_len + 1;
1890                 buf = os_malloc(buf_len);
1891                 if (buf) {
1892                         wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1893                         wpa_msg_ctrl(wpa_s, MSG_INFO,
1894                                      P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1895                                      MAC2STR(sa), update_indic, buf);
1896                         os_free(buf);
1897                 }
1898         }
1899
1900         while (pos < end) {
1901                 u8 srv_proto, srv_trans_id, status;
1902
1903                 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1904                 slen = WPA_GET_LE16(pos);
1905                 pos += 2;
1906                 if (pos + slen > end || slen < 3) {
1907                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1908                                    "length");
1909                         return;
1910                 }
1911                 tlv_end = pos + slen;
1912
1913                 srv_proto = *pos++;
1914                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1915                            srv_proto);
1916                 srv_trans_id = *pos++;
1917                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1918                            srv_trans_id);
1919                 status = *pos++;
1920                 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1921                            status);
1922
1923                 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1924                             pos, tlv_end - pos);
1925
1926                 pos = tlv_end;
1927         }
1928
1929         wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1930 }
1931
1932
1933 u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1934                         const struct wpabuf *tlvs)
1935 {
1936         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1937                 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
1938         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1939                 return 0;
1940         return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1941 }
1942
1943
1944 u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1945                              u8 version, const char *query)
1946 {
1947         struct wpabuf *tlvs;
1948         u64 ret;
1949
1950         tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1951         if (tlvs == NULL)
1952                 return 0;
1953         wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1954         wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1955         wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1956         wpabuf_put_u8(tlvs, version);
1957         wpabuf_put_str(tlvs, query);
1958         ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1959         wpabuf_free(tlvs);
1960         return ret;
1961 }
1962
1963
1964 #ifdef CONFIG_WIFI_DISPLAY
1965
1966 static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
1967                                    const struct wpabuf *tlvs)
1968 {
1969         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1970                 return 0;
1971         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1972                 return 0;
1973         return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
1974 }
1975
1976
1977 #define MAX_WFD_SD_SUBELEMS 20
1978
1979 static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
1980                                 const char *subelems)
1981 {
1982         u8 *len;
1983         const char *pos;
1984         int val;
1985         int count = 0;
1986
1987         len = wpabuf_put(tlvs, 2);
1988         wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
1989         wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
1990
1991         wpabuf_put_u8(tlvs, role);
1992
1993         pos = subelems;
1994         while (*pos) {
1995                 val = atoi(pos);
1996                 if (val >= 0 && val < 256) {
1997                         wpabuf_put_u8(tlvs, val);
1998                         count++;
1999                         if (count == MAX_WFD_SD_SUBELEMS)
2000                                 break;
2001                 }
2002                 pos = os_strchr(pos + 1, ',');
2003                 if (pos == NULL)
2004                         break;
2005                 pos++;
2006         }
2007
2008         WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
2009 }
2010
2011
2012 u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
2013                                      const u8 *dst, const char *role)
2014 {
2015         struct wpabuf *tlvs;
2016         u64 ret;
2017         const char *subelems;
2018         u8 id = 1;
2019
2020         subelems = os_strchr(role, ' ');
2021         if (subelems == NULL)
2022                 return 0;
2023         subelems++;
2024
2025         tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
2026         if (tlvs == NULL)
2027                 return 0;
2028
2029         if (os_strstr(role, "[source]"))
2030                 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
2031         if (os_strstr(role, "[pri-sink]"))
2032                 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
2033         if (os_strstr(role, "[sec-sink]"))
2034                 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
2035         if (os_strstr(role, "[source+sink]"))
2036                 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
2037
2038         ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
2039         wpabuf_free(tlvs);
2040         return ret;
2041 }
2042
2043 #endif /* CONFIG_WIFI_DISPLAY */
2044
2045
2046 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
2047 {
2048         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2049                 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
2050         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2051                 return -1;
2052         return p2p_sd_cancel_request(wpa_s->global->p2p,
2053                                      (void *) (uintptr_t) req);
2054 }
2055
2056
2057 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
2058                           const u8 *dst, u8 dialog_token,
2059                           const struct wpabuf *resp_tlvs)
2060 {
2061         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2062                 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
2063                                         resp_tlvs);
2064                 return;
2065         }
2066         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2067                 return;
2068         p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
2069                         resp_tlvs);
2070 }
2071
2072
2073 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
2074 {
2075         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2076                 wpa_drv_p2p_service_update(wpa_s);
2077                 return;
2078         }
2079         if (wpa_s->global->p2p)
2080                 p2p_sd_service_update(wpa_s->global->p2p);
2081 }
2082
2083
2084 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
2085 {
2086         dl_list_del(&bsrv->list);
2087         wpabuf_free(bsrv->query);
2088         wpabuf_free(bsrv->resp);
2089         os_free(bsrv);
2090 }
2091
2092
2093 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
2094 {
2095         dl_list_del(&usrv->list);
2096         os_free(usrv->service);
2097         os_free(usrv);
2098 }
2099
2100
2101 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
2102 {
2103         struct p2p_srv_bonjour *bsrv, *bn;
2104         struct p2p_srv_upnp *usrv, *un;
2105
2106         dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
2107                               struct p2p_srv_bonjour, list)
2108                 wpas_p2p_srv_bonjour_free(bsrv);
2109
2110         dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
2111                               struct p2p_srv_upnp, list)
2112                 wpas_p2p_srv_upnp_free(usrv);
2113
2114         wpas_p2p_sd_service_update(wpa_s);
2115 }
2116
2117
2118 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
2119                                  struct wpabuf *query, struct wpabuf *resp)
2120 {
2121         struct p2p_srv_bonjour *bsrv;
2122
2123         bsrv = os_zalloc(sizeof(*bsrv));
2124         if (bsrv == NULL)
2125                 return -1;
2126         bsrv->query = query;
2127         bsrv->resp = resp;
2128         dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
2129
2130         wpas_p2p_sd_service_update(wpa_s);
2131         return 0;
2132 }
2133
2134
2135 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2136                                  const struct wpabuf *query)
2137 {
2138         struct p2p_srv_bonjour *bsrv;
2139
2140         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2141         if (bsrv == NULL)
2142                 return -1;
2143         wpas_p2p_srv_bonjour_free(bsrv);
2144         wpas_p2p_sd_service_update(wpa_s);
2145         return 0;
2146 }
2147
2148
2149 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2150                               const char *service)
2151 {
2152         struct p2p_srv_upnp *usrv;
2153
2154         if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2155                 return 0; /* Already listed */
2156         usrv = os_zalloc(sizeof(*usrv));
2157         if (usrv == NULL)
2158                 return -1;
2159         usrv->version = version;
2160         usrv->service = os_strdup(service);
2161         if (usrv->service == NULL) {
2162                 os_free(usrv);
2163                 return -1;
2164         }
2165         dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2166
2167         wpas_p2p_sd_service_update(wpa_s);
2168         return 0;
2169 }
2170
2171
2172 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2173                               const char *service)
2174 {
2175         struct p2p_srv_upnp *usrv;
2176
2177         usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2178         if (usrv == NULL)
2179                 return -1;
2180         wpas_p2p_srv_upnp_free(usrv);
2181         wpas_p2p_sd_service_update(wpa_s);
2182         return 0;
2183 }
2184
2185
2186 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2187                                          const u8 *peer, const char *params,
2188                                          unsigned int generated_pin)
2189 {
2190         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
2191                 MAC2STR(peer), generated_pin, params);
2192 }
2193
2194
2195 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2196                                         const u8 *peer, const char *params)
2197 {
2198         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
2199                 MAC2STR(peer), params);
2200 }
2201
2202
2203 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2204                         const u8 *dev_addr, const u8 *pri_dev_type,
2205                         const char *dev_name, u16 supp_config_methods,
2206                         u8 dev_capab, u8 group_capab, const u8 *group_id,
2207                         size_t group_id_len)
2208 {
2209         struct wpa_supplicant *wpa_s = ctx;
2210         char devtype[WPS_DEV_TYPE_BUFSIZE];
2211         char params[300];
2212         u8 empty_dev_type[8];
2213         unsigned int generated_pin = 0;
2214         struct wpa_supplicant *group = NULL;
2215
2216         if (group_id) {
2217                 for (group = wpa_s->global->ifaces; group; group = group->next)
2218                 {
2219                         struct wpa_ssid *s = group->current_ssid;
2220                         if (s != NULL &&
2221                             s->mode == WPAS_MODE_P2P_GO &&
2222                             group_id_len - ETH_ALEN == s->ssid_len &&
2223                             os_memcmp(group_id + ETH_ALEN, s->ssid,
2224                                       s->ssid_len) == 0)
2225                                 break;
2226                 }
2227         }
2228
2229         if (pri_dev_type == NULL) {
2230                 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2231                 pri_dev_type = empty_dev_type;
2232         }
2233         os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2234                     " pri_dev_type=%s name='%s' config_methods=0x%x "
2235                     "dev_capab=0x%x group_capab=0x%x%s%s",
2236                     MAC2STR(dev_addr),
2237                     wps_dev_type_bin2str(pri_dev_type, devtype,
2238                                          sizeof(devtype)),
2239                     dev_name, supp_config_methods, dev_capab, group_capab,
2240                     group ? " group=" : "",
2241                     group ? group->ifname : "");
2242         params[sizeof(params) - 1] = '\0';
2243
2244         if (config_methods & WPS_CONFIG_DISPLAY) {
2245                 generated_pin = wps_generate_pin();
2246                 wpas_prov_disc_local_display(wpa_s, peer, params,
2247                                              generated_pin);
2248         } else if (config_methods & WPS_CONFIG_KEYPAD)
2249                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2250         else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2251                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
2252                         "%s", MAC2STR(peer), params);
2253
2254         wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2255                                             P2P_PROV_DISC_SUCCESS,
2256                                             config_methods, generated_pin);
2257 }
2258
2259
2260 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2261 {
2262         struct wpa_supplicant *wpa_s = ctx;
2263         unsigned int generated_pin = 0;
2264         char params[20];
2265
2266         if (wpa_s->pending_pd_before_join &&
2267             (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2268              os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2269                 wpa_s->pending_pd_before_join = 0;
2270                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2271                            "join-existing-group operation");
2272                 wpas_p2p_join_start(wpa_s);
2273                 return;
2274         }
2275
2276         if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2277             wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2278                 os_snprintf(params, sizeof(params), " peer_go=%d",
2279                             wpa_s->pending_pd_use == AUTO_PD_JOIN);
2280         else
2281                 params[0] = '\0';
2282
2283         if (config_methods & WPS_CONFIG_DISPLAY)
2284                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2285         else if (config_methods & WPS_CONFIG_KEYPAD) {
2286                 generated_pin = wps_generate_pin();
2287                 wpas_prov_disc_local_display(wpa_s, peer, params,
2288                                              generated_pin);
2289         } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2290                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR
2291                         "%s", MAC2STR(peer), params);
2292
2293         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2294                                             P2P_PROV_DISC_SUCCESS,
2295                                             config_methods, generated_pin);
2296 }
2297
2298
2299 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2300                                 enum p2p_prov_disc_status status)
2301 {
2302         struct wpa_supplicant *wpa_s = ctx;
2303
2304         if (wpa_s->p2p_fallback_to_go_neg) {
2305                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2306                         "failed - fall back to GO Negotiation");
2307                 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2308                 return;
2309         }
2310
2311         if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2312                 wpa_s->pending_pd_before_join = 0;
2313                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2314                            "join-existing-group operation (no ACK for PD "
2315                            "Req attempts)");
2316                 wpas_p2p_join_start(wpa_s);
2317                 return;
2318         }
2319
2320         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2321                 " p2p_dev_addr=" MACSTR " status=%d",
2322                 MAC2STR(peer), status);
2323
2324         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2325                                             status, 0, 0);
2326 }
2327
2328
2329 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2330                                   const u8 *go_dev_addr, const u8 *ssid,
2331                                   size_t ssid_len, int *go, u8 *group_bssid,
2332                                   int *force_freq, int persistent_group)
2333 {
2334         struct wpa_supplicant *wpa_s = ctx;
2335         struct wpa_ssid *s;
2336         u8 cur_bssid[ETH_ALEN];
2337         int res;
2338         struct wpa_supplicant *grp;
2339
2340         if (!persistent_group) {
2341                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2342                            " to join an active group", MAC2STR(sa));
2343                 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2344                     (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2345                      == 0 ||
2346                      os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2347                         wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2348                                    "authorized invitation");
2349                         goto accept_inv;
2350                 }
2351                 /*
2352                  * Do not accept the invitation automatically; notify user and
2353                  * request approval.
2354                  */
2355                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2356         }
2357
2358         grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2359         if (grp) {
2360                 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2361                            "running persistent group");
2362                 if (*go)
2363                         os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2364                 goto accept_inv;
2365         }
2366
2367         if (!wpa_s->conf->persistent_reconnect)
2368                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2369
2370         for (s = wpa_s->conf->ssid; s; s = s->next) {
2371                 if (s->disabled == 2 &&
2372                     os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2373                     s->ssid_len == ssid_len &&
2374                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2375                         break;
2376         }
2377
2378         if (!s) {
2379                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2380                            " requested reinvocation of an unknown group",
2381                            MAC2STR(sa));
2382                 return P2P_SC_FAIL_UNKNOWN_GROUP;
2383         }
2384
2385         if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2386                 *go = 1;
2387                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2388                         wpa_printf(MSG_DEBUG, "P2P: The only available "
2389                                    "interface is already in use - reject "
2390                                    "invitation");
2391                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2392                 }
2393                 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2394         } else if (s->mode == WPAS_MODE_P2P_GO) {
2395                 *go = 1;
2396                 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2397                 {
2398                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2399                                    "interface address for the group");
2400                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2401                 }
2402                 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2403                           ETH_ALEN);
2404         }
2405
2406 accept_inv:
2407         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
2408             wpa_s->assoc_freq) {
2409                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2410                            "the channel we are already using");
2411                 *force_freq = wpa_s->assoc_freq;
2412         }
2413
2414         res = wpa_drv_shared_freq(wpa_s);
2415         if (res > 0) {
2416                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2417                            "with the channel we are already using on a "
2418                            "shared interface");
2419                 *force_freq = res;
2420         }
2421
2422         return P2P_SC_SUCCESS;
2423 }
2424
2425
2426 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2427                                      const u8 *ssid, size_t ssid_len,
2428                                      const u8 *go_dev_addr, u8 status,
2429                                      int op_freq)
2430 {
2431         struct wpa_supplicant *wpa_s = ctx;
2432         struct wpa_ssid *s;
2433
2434         for (s = wpa_s->conf->ssid; s; s = s->next) {
2435                 if (s->disabled == 2 &&
2436                     s->ssid_len == ssid_len &&
2437                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2438                         break;
2439         }
2440
2441         if (status == P2P_SC_SUCCESS) {
2442                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2443                            " was accepted; op_freq=%d MHz",
2444                            MAC2STR(sa), op_freq);
2445                 if (s) {
2446                         int go = s->mode == WPAS_MODE_P2P_GO;
2447                         wpas_p2p_group_add_persistent(
2448                                 wpa_s, s, go, go ? op_freq : 0, 0, NULL);
2449                 } else if (bssid) {
2450                         wpa_s->user_initiated_pd = 0;
2451                         wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2452                                       wpa_s->p2p_wps_method, 0);
2453                 }
2454                 return;
2455         }
2456
2457         if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2458                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2459                            " was rejected (status %u)", MAC2STR(sa), status);
2460                 return;
2461         }
2462
2463         if (!s) {
2464                 if (bssid) {
2465                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2466                                 "sa=" MACSTR " go_dev_addr=" MACSTR
2467                                 " bssid=" MACSTR " unknown-network",
2468                                 MAC2STR(sa), MAC2STR(go_dev_addr),
2469                                 MAC2STR(bssid));
2470                 } else {
2471                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2472                                 "sa=" MACSTR " go_dev_addr=" MACSTR
2473                                 " unknown-network",
2474                                 MAC2STR(sa), MAC2STR(go_dev_addr));
2475                 }
2476                 return;
2477         }
2478
2479         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
2480                 " persistent=%d", MAC2STR(sa), s->id);
2481 }
2482
2483
2484 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
2485                                    const struct p2p_channels *channels)
2486 {
2487         struct wpa_supplicant *wpa_s = ctx;
2488         struct wpa_ssid *ssid;
2489
2490         if (bssid) {
2491                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2492                         "status=%d " MACSTR,
2493                         status, MAC2STR(bssid));
2494         } else {
2495                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2496                         "status=%d ", status);
2497         }
2498         wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2499
2500         if (wpa_s->pending_invite_ssid_id == -1)
2501                 return; /* Invitation to active group */
2502
2503         if (status != P2P_SC_SUCCESS) {
2504                 wpas_p2p_remove_pending_group_interface(wpa_s);
2505                 return;
2506         }
2507
2508         ssid = wpa_config_get_network(wpa_s->conf,
2509                                       wpa_s->pending_invite_ssid_id);
2510         if (ssid == NULL) {
2511                 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2512                            "data matching with invitation");
2513                 return;
2514         }
2515
2516         /*
2517          * The peer could have missed our ctrl::ack frame for Invitation
2518          * Response and continue retransmitting the frame. To reduce the
2519          * likelihood of the peer not getting successful TX status for the
2520          * Invitation Response frame, wait a short time here before starting
2521          * the persistent group so that we will remain on the current channel to
2522          * acknowledge any possible retransmission from the peer.
2523          */
2524         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
2525                 "starting persistent group");
2526         os_sleep(0, 50000);
2527
2528         wpas_p2p_group_add_persistent(wpa_s, ssid,
2529                                       ssid->mode == WPAS_MODE_P2P_GO,
2530                                       wpa_s->p2p_persistent_go_freq,
2531                                       wpa_s->p2p_go_ht40, channels);
2532 }
2533
2534
2535 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2536                                     unsigned int freq)
2537 {
2538         unsigned int i;
2539
2540         if (global->p2p_disallow_freq == NULL)
2541                 return 0;
2542
2543         for (i = 0; i < global->num_p2p_disallow_freq; i++) {
2544                 if (freq >= global->p2p_disallow_freq[i].min &&
2545                     freq <= global->p2p_disallow_freq[i].max)
2546                         return 1;
2547         }
2548
2549         return 0;
2550 }
2551
2552
2553 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2554 {
2555         reg->channel[reg->channels] = chan;
2556         reg->channels++;
2557 }
2558
2559
2560 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2561                                      struct p2p_channels *chan)
2562 {
2563         int i, cla = 0;
2564
2565         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2566                    "band");
2567
2568         /* Operating class 81 - 2.4 GHz band channels 1..13 */
2569         chan->reg_class[cla].reg_class = 81;
2570         chan->reg_class[cla].channels = 0;
2571         for (i = 0; i < 11; i++) {
2572                 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
2573                         wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
2574         }
2575         if (chan->reg_class[cla].channels)
2576                 cla++;
2577
2578         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2579                    "band");
2580
2581         /* Operating class 115 - 5 GHz, channels 36-48 */
2582         chan->reg_class[cla].reg_class = 115;
2583         chan->reg_class[cla].channels = 0;
2584         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
2585                 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
2586         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
2587                 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
2588         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
2589                 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
2590         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
2591                 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
2592         if (chan->reg_class[cla].channels)
2593                 cla++;
2594
2595         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2596                    "band");
2597
2598         /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2599         chan->reg_class[cla].reg_class = 124;
2600         chan->reg_class[cla].channels = 0;
2601         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
2602                 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
2603         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
2604                 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
2605         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
2606                 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
2607         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
2608                 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
2609         if (chan->reg_class[cla].channels)
2610                 cla++;
2611
2612         chan->reg_classes = cla;
2613         return 0;
2614 }
2615
2616
2617 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2618                                           u16 num_modes,
2619                                           enum hostapd_hw_mode mode)
2620 {
2621         u16 i;
2622
2623         for (i = 0; i < num_modes; i++) {
2624                 if (modes[i].mode == mode)
2625                         return &modes[i];
2626         }
2627
2628         return NULL;
2629 }
2630
2631
2632 static int has_channel(struct wpa_global *global,
2633                        struct hostapd_hw_modes *mode, u8 chan, int *flags)
2634 {
2635         int i;
2636         unsigned int freq;
2637
2638         freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
2639                 chan * 5;
2640         if (wpas_p2p_disallowed_freq(global, freq))
2641                 return 0;
2642
2643         for (i = 0; i < mode->num_channels; i++) {
2644                 if (mode->channels[i].chan == chan) {
2645                         if (flags)
2646                                 *flags = mode->channels[i].flag;
2647                         return !(mode->channels[i].flag &
2648                                  (HOSTAPD_CHAN_DISABLED |
2649                                   HOSTAPD_CHAN_PASSIVE_SCAN |
2650                                   HOSTAPD_CHAN_NO_IBSS |
2651                                   HOSTAPD_CHAN_RADAR));
2652                 }
2653         }
2654
2655         return 0;
2656 }
2657
2658
2659 struct p2p_oper_class_map {
2660         enum hostapd_hw_mode mode;
2661         u8 op_class;
2662         u8 min_chan;
2663         u8 max_chan;
2664         u8 inc;
2665         enum { BW20, BW40PLUS, BW40MINUS } bw;
2666 };
2667
2668 static struct p2p_oper_class_map op_class[] = {
2669         { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2670 #if 0 /* Do not enable HT40 on 2 GHz for now */
2671         { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2672         { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2673 #endif
2674         { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2675         { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2676         { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2677         { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2678         { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2679         { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2680         { -1, 0, 0, 0, 0, BW20 }
2681 };
2682
2683
2684 static int wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
2685                                    struct hostapd_hw_modes *mode,
2686                                    u8 channel, u8 bw)
2687 {
2688         int flag;
2689
2690         if (!has_channel(wpa_s->global, mode, channel, &flag))
2691                 return -1;
2692         if (bw == BW40MINUS &&
2693             (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2694              !has_channel(wpa_s->global, mode, channel - 4, NULL)))
2695                 return 0;
2696         if (bw == BW40PLUS &&
2697             (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2698              !has_channel(wpa_s->global, mode, channel + 4, NULL)))
2699                 return 0;
2700         return 1;
2701 }
2702
2703
2704 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2705                                    struct p2p_channels *chan)
2706 {
2707         struct hostapd_hw_modes *mode;
2708         int cla, op;
2709
2710         if (wpa_s->hw.modes == NULL) {
2711                 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2712                            "of all supported channels; assume dualband "
2713                            "support");
2714                 return wpas_p2p_default_channels(wpa_s, chan);
2715         }
2716
2717         cla = 0;
2718
2719         for (op = 0; op_class[op].op_class; op++) {
2720                 struct p2p_oper_class_map *o = &op_class[op];
2721                 u8 ch;
2722                 struct p2p_reg_class *reg = NULL;
2723
2724                 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
2725                 if (mode == NULL)
2726                         continue;
2727                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2728                         if (wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw) < 1)
2729                                 continue;
2730                         if (reg == NULL) {
2731                                 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2732                                            "class %u", o->op_class);
2733                                 reg = &chan->reg_class[cla];
2734                                 cla++;
2735                                 reg->reg_class = o->op_class;
2736                         }
2737                         reg->channel[reg->channels] = ch;
2738                         reg->channels++;
2739                 }
2740                 if (reg) {
2741                         wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2742                                     reg->channel, reg->channels);
2743                 }
2744         }
2745
2746         chan->reg_classes = cla;
2747
2748         return 0;
2749 }
2750
2751
2752 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
2753                            struct hostapd_hw_modes *mode, u8 channel)
2754 {
2755         int op, ret;
2756
2757         for (op = 0; op_class[op].op_class; op++) {
2758                 struct p2p_oper_class_map *o = &op_class[op];
2759                 u8 ch;
2760
2761                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2762                         if (o->mode != HOSTAPD_MODE_IEEE80211A ||
2763                             o->bw == BW20 || ch != channel)
2764                                 continue;
2765                         ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
2766                         if (ret < 0)
2767                                 continue;
2768                         else if (ret > 0)
2769                                 return (o->bw == BW40MINUS) ? -1 : 1;
2770                         else
2771                                 return 0;
2772                 }
2773         }
2774         return 0;
2775 }
2776
2777
2778 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2779                         size_t buf_len)
2780 {
2781         struct wpa_supplicant *wpa_s = ctx;
2782
2783         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2784                 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2785                         break;
2786         }
2787         if (wpa_s == NULL)
2788                 return -1;
2789
2790         return wpa_drv_get_noa(wpa_s, buf, buf_len);
2791 }
2792
2793
2794 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
2795 {
2796         struct wpa_supplicant *wpa_s = ctx;
2797
2798         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2799                 struct wpa_ssid *ssid = wpa_s->current_ssid;
2800                 if (ssid == NULL)
2801                         continue;
2802                 if (ssid->mode != WPAS_MODE_INFRA)
2803                         continue;
2804                 if (wpa_s->wpa_state != WPA_COMPLETED &&
2805                     wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
2806                         continue;
2807                 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
2808                         return 1;
2809         }
2810
2811         return 0;
2812 }
2813
2814
2815 /**
2816  * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2817  * @global: Pointer to global data from wpa_supplicant_init()
2818  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2819  * Returns: 0 on success, -1 on failure
2820  */
2821 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2822 {
2823         struct p2p_config p2p;
2824         unsigned int r;
2825         int i;
2826
2827         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2828                 return 0;
2829
2830         if (global->p2p)
2831                 return 0;
2832
2833         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2834                 struct p2p_params params;
2835
2836                 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2837                 os_memset(&params, 0, sizeof(params));
2838                 params.dev_name = wpa_s->conf->device_name;
2839                 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2840                           WPS_DEV_TYPE_LEN);
2841                 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2842                 os_memcpy(params.sec_dev_type,
2843                           wpa_s->conf->sec_device_type,
2844                           params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2845
2846                 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2847                         return -1;
2848
2849                 return 0;
2850         }
2851
2852         os_memset(&p2p, 0, sizeof(p2p));
2853         p2p.msg_ctx = wpa_s;
2854         p2p.cb_ctx = wpa_s;
2855         p2p.p2p_scan = wpas_p2p_scan;
2856         p2p.send_action = wpas_send_action;
2857         p2p.send_action_done = wpas_send_action_done;
2858         p2p.go_neg_completed = wpas_go_neg_completed;
2859         p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2860         p2p.dev_found = wpas_dev_found;
2861         p2p.dev_lost = wpas_dev_lost;
2862         p2p.start_listen = wpas_start_listen;
2863         p2p.stop_listen = wpas_stop_listen;
2864         p2p.send_probe_resp = wpas_send_probe_resp;
2865         p2p.sd_request = wpas_sd_request;
2866         p2p.sd_response = wpas_sd_response;
2867         p2p.prov_disc_req = wpas_prov_disc_req;
2868         p2p.prov_disc_resp = wpas_prov_disc_resp;
2869         p2p.prov_disc_fail = wpas_prov_disc_fail;
2870         p2p.invitation_process = wpas_invitation_process;
2871         p2p.invitation_received = wpas_invitation_received;
2872         p2p.invitation_result = wpas_invitation_result;
2873         p2p.get_noa = wpas_get_noa;
2874         p2p.go_connected = wpas_go_connected;
2875
2876         os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2877         os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
2878         p2p.dev_name = wpa_s->conf->device_name;
2879         p2p.manufacturer = wpa_s->conf->manufacturer;
2880         p2p.model_name = wpa_s->conf->model_name;
2881         p2p.model_number = wpa_s->conf->model_number;
2882         p2p.serial_number = wpa_s->conf->serial_number;
2883         if (wpa_s->wps) {
2884                 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2885                 p2p.config_methods = wpa_s->wps->config_methods;
2886         }
2887
2888         if (wpa_s->conf->p2p_listen_reg_class &&
2889             wpa_s->conf->p2p_listen_channel) {
2890                 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2891                 p2p.channel = wpa_s->conf->p2p_listen_channel;
2892         } else {
2893                 p2p.reg_class = 81;
2894                 /*
2895                  * Pick one of the social channels randomly as the listen
2896                  * channel.
2897                  */
2898                 os_get_random((u8 *) &r, sizeof(r));
2899                 p2p.channel = 1 + (r % 3) * 5;
2900         }
2901         wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2902
2903         if (wpa_s->conf->p2p_oper_reg_class &&
2904             wpa_s->conf->p2p_oper_channel) {
2905                 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2906                 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2907                 p2p.cfg_op_channel = 1;
2908                 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2909                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2910
2911         } else {
2912                 p2p.op_reg_class = 81;
2913                 /*
2914                  * Use random operation channel from (1, 6, 11) if no other
2915                  * preference is indicated.
2916                  */
2917                 os_get_random((u8 *) &r, sizeof(r));
2918                 p2p.op_channel = 1 + (r % 3) * 5;
2919                 p2p.cfg_op_channel = 0;
2920                 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2921                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2922         }
2923         if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2924                 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2925                 p2p.country[2] = 0x04;
2926         } else
2927                 os_memcpy(p2p.country, "XX\x04", 3);
2928
2929         if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2930                 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2931                            "channel list");
2932                 return -1;
2933         }
2934
2935         os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2936                   WPS_DEV_TYPE_LEN);
2937
2938         p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2939         os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2940                   p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2941
2942         p2p.concurrent_operations = !!(wpa_s->drv_flags &
2943                                        WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2944
2945         p2p.max_peers = 100;
2946
2947         if (wpa_s->conf->p2p_ssid_postfix) {
2948                 p2p.ssid_postfix_len =
2949                         os_strlen(wpa_s->conf->p2p_ssid_postfix);
2950                 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2951                         p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2952                 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2953                           p2p.ssid_postfix_len);
2954         }
2955
2956         p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2957
2958         p2p.max_listen = wpa_s->max_remain_on_chan;
2959
2960         global->p2p = p2p_init(&p2p);
2961         if (global->p2p == NULL)
2962                 return -1;
2963         global->p2p_init_wpa_s = wpa_s;
2964
2965         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2966                 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2967                         continue;
2968                 p2p_add_wps_vendor_extension(
2969                         global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2970         }
2971
2972         return 0;
2973 }
2974
2975
2976 /**
2977  * wpas_p2p_deinit - Deinitialize per-interface P2P data
2978  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2979  *
2980  * This function deinitialize per-interface P2P data.
2981  */
2982 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2983 {
2984         if (wpa_s->driver && wpa_s->drv_priv)
2985                 wpa_drv_probe_req_report(wpa_s, 0);
2986
2987         if (wpa_s->go_params) {
2988                 /* Clear any stored provisioning info */
2989                 p2p_clear_provisioning_info(
2990                         wpa_s->global->p2p,
2991                         wpa_s->go_params->peer_device_addr);
2992         }
2993
2994         os_free(wpa_s->go_params);
2995         wpa_s->go_params = NULL;
2996         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2997         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2998         wpa_s->p2p_long_listen = 0;
2999         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3000         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3001         wpas_p2p_remove_pending_group_interface(wpa_s);
3002
3003         /* TODO: remove group interface from the driver if this wpa_s instance
3004          * is on top of a P2P group interface */
3005 }
3006
3007
3008 /**
3009  * wpas_p2p_deinit_global - Deinitialize global P2P module
3010  * @global: Pointer to global data from wpa_supplicant_init()
3011  *
3012  * This function deinitializes the global (per device) P2P module.
3013  */
3014 void wpas_p2p_deinit_global(struct wpa_global *global)
3015 {
3016         struct wpa_supplicant *wpa_s, *tmp;
3017
3018         wpa_s = global->ifaces;
3019         if (wpa_s)
3020                 wpas_p2p_service_flush(wpa_s);
3021
3022         if (global->p2p == NULL)
3023                 return;
3024
3025         /* Remove remaining P2P group interfaces */
3026         while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
3027                 wpa_s = wpa_s->next;
3028         while (wpa_s) {
3029                 tmp = global->ifaces;
3030                 while (tmp &&
3031                        (tmp == wpa_s ||
3032                         tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
3033                         tmp = tmp->next;
3034                 }
3035                 if (tmp == NULL)
3036                         break;
3037                 /* Disconnect from the P2P group and deinit the interface */
3038                 wpas_p2p_disconnect(tmp);
3039         }
3040
3041         /*
3042          * Deinit GO data on any possibly remaining interface (if main
3043          * interface is used as GO).
3044          */
3045         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3046                 if (wpa_s->ap_iface)
3047                         wpas_p2p_group_deinit(wpa_s);
3048         }
3049
3050         p2p_deinit(global->p2p);
3051         global->p2p = NULL;
3052         global->p2p_init_wpa_s = NULL;
3053 }
3054
3055
3056 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
3057 {
3058         if (wpa_s->conf->p2p_no_group_iface)
3059                 return 0; /* separate interface disabled per configuration */
3060         if (wpa_s->drv_flags &
3061             (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
3062              WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
3063                 return 1; /* P2P group requires a new interface in every case
3064                            */
3065         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
3066                 return 0; /* driver does not support concurrent operations */
3067         if (wpa_s->global->ifaces->next)
3068                 return 1; /* more that one interface already in use */
3069         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
3070                 return 1; /* this interface is already in use */
3071         return 0;
3072 }
3073
3074
3075 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
3076                                  const u8 *peer_addr,
3077                                  enum p2p_wps_method wps_method,
3078                                  int go_intent, const u8 *own_interface_addr,
3079                                  unsigned int force_freq, int persistent_group,
3080                                  struct wpa_ssid *ssid, unsigned int pref_freq)
3081 {
3082         if (persistent_group && wpa_s->conf->persistent_reconnect)
3083                 persistent_group = 2;
3084
3085         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3086                 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
3087                                            go_intent, own_interface_addr,
3088                                            force_freq, persistent_group);
3089         }
3090
3091         /*
3092          * Increase GO config timeout if HT40 is used since it takes some time
3093          * to scan channels for coex purposes before the BSS can be started.
3094          */
3095         p2p_set_config_timeout(wpa_s->global->p2p,
3096                                wpa_s->p2p_go_ht40 ? 255 : 100, 20);
3097
3098         return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
3099                            go_intent, own_interface_addr, force_freq,
3100                            persistent_group, ssid ? ssid->ssid : NULL,
3101                            ssid ? ssid->ssid_len : 0,
3102                            wpa_s->p2p_pd_before_go_neg, pref_freq);
3103 }
3104
3105
3106 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
3107                                 const u8 *peer_addr,
3108                                 enum p2p_wps_method wps_method,
3109                                 int go_intent, const u8 *own_interface_addr,
3110                                 unsigned int force_freq, int persistent_group,
3111                                 struct wpa_ssid *ssid, unsigned int pref_freq)
3112 {
3113         if (persistent_group && wpa_s->conf->persistent_reconnect)
3114                 persistent_group = 2;
3115
3116         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3117                 return -1;
3118
3119         return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
3120                              go_intent, own_interface_addr, force_freq,
3121                              persistent_group, ssid ? ssid->ssid : NULL,
3122                              ssid ? ssid->ssid_len : 0, pref_freq);
3123 }
3124
3125
3126 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
3127 {
3128         wpa_s->p2p_join_scan_count++;
3129         wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
3130                    wpa_s->p2p_join_scan_count);
3131         if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
3132                 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
3133                            " for join operationg - stop join attempt",
3134                            MAC2STR(wpa_s->pending_join_iface_addr));
3135                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3136                 if (wpa_s->p2p_auto_pd) {
3137                         wpa_s->p2p_auto_pd = 0;
3138                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3139                                 " p2p_dev_addr=" MACSTR " status=N/A",
3140                                 MAC2STR(wpa_s->pending_join_dev_addr));
3141                         return;
3142                 }
3143                 wpa_msg(wpa_s->parent, MSG_INFO,
3144                         P2P_EVENT_GROUP_FORMATION_FAILURE);
3145         }
3146 }
3147
3148
3149 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
3150 {
3151         struct wpa_supplicant *iface;
3152         int shared_freq;
3153         u8 bssid[ETH_ALEN];
3154
3155         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)
3156                 return 0;
3157
3158         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
3159                 if (!wpas_p2p_create_iface(wpa_s) && iface == wpa_s)
3160                         continue;
3161                 if (iface->current_ssid == NULL || iface->assoc_freq == 0)
3162                         continue;
3163                 if (iface->current_ssid->mode == WPAS_MODE_AP ||
3164                     iface->current_ssid->mode == WPAS_MODE_P2P_GO)
3165                         shared_freq = iface->current_ssid->frequency;
3166                 else if (wpa_drv_get_bssid(iface, bssid) == 0)
3167                         shared_freq = iface->assoc_freq;
3168                 else
3169                         shared_freq = 0;
3170
3171                 if (shared_freq && freq != shared_freq) {
3172                         wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - %s "
3173                                    "connected on %d MHz - new connection on "
3174                                    "%d MHz", iface->ifname, shared_freq, freq);
3175                         return 1;
3176                 }
3177         }
3178
3179         shared_freq = wpa_drv_shared_freq(wpa_s);
3180         if (shared_freq > 0 && shared_freq != freq) {
3181                 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - shared "
3182                            "virtual interface connected on %d MHz - new "
3183                            "connection on %d MHz", shared_freq, freq);
3184                 return 1;
3185         }
3186
3187         return 0;
3188 }
3189
3190
3191 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
3192                             const u8 *peer_dev_addr)
3193 {
3194         struct wpa_bss *bss;
3195         int updated;
3196
3197         bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
3198         if (bss == NULL)
3199                 return -1;
3200         if (bss->last_update_idx < wpa_s->bss_update_idx) {
3201                 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
3202                            "last scan");
3203                 return 0;
3204         }
3205
3206         updated = os_time_before(&wpa_s->p2p_auto_started, &bss->last_update);
3207         wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
3208                    "%ld.%06ld (%supdated in last scan)",
3209                    bss->last_update.sec, bss->last_update.usec,
3210                    updated ? "": "not ");
3211
3212         return updated;
3213 }
3214
3215
3216 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
3217                                    struct wpa_scan_results *scan_res)
3218 {
3219         struct wpa_bss *bss;
3220         int freq;
3221         u8 iface_addr[ETH_ALEN];
3222
3223         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3224
3225         if (wpa_s->global->p2p_disabled)
3226                 return;
3227
3228         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
3229                    scan_res ? (int) scan_res->num : -1,
3230                    wpa_s->p2p_auto_join ? "auto_" : "");
3231
3232         if (scan_res)
3233                 wpas_p2p_scan_res_handler(wpa_s, scan_res);
3234
3235         if (wpa_s->p2p_auto_pd) {
3236                 int join = wpas_p2p_peer_go(wpa_s,
3237                                             wpa_s->pending_join_dev_addr);
3238                 if (join == 0 &&
3239                     wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
3240                         wpa_s->auto_pd_scan_retry++;
3241                         bss = wpa_bss_get_bssid(wpa_s,
3242                                                 wpa_s->pending_join_dev_addr);
3243                         if (bss) {
3244                                 freq = bss->freq;
3245                                 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
3246                                            "the peer " MACSTR " at %d MHz",
3247                                            wpa_s->auto_pd_scan_retry,
3248                                            MAC2STR(wpa_s->
3249                                                    pending_join_dev_addr),
3250                                            freq);
3251                                 wpas_p2p_join_scan_req(wpa_s, freq);
3252                                 return;
3253                         }
3254                 }
3255
3256                 if (join < 0)
3257                         join = 0;
3258
3259                 wpa_s->p2p_auto_pd = 0;
3260                 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
3261                 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
3262                            MAC2STR(wpa_s->pending_join_dev_addr), join);
3263                 if (p2p_prov_disc_req(wpa_s->global->p2p,
3264                                       wpa_s->pending_join_dev_addr,
3265                                       wpa_s->pending_pd_config_methods, join,
3266                                       0, wpa_s->user_initiated_pd) < 0) {
3267                         wpa_s->p2p_auto_pd = 0;
3268                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3269                                 " p2p_dev_addr=" MACSTR " status=N/A",
3270                                 MAC2STR(wpa_s->pending_join_dev_addr));
3271                 }
3272                 return;
3273         }
3274
3275         if (wpa_s->p2p_auto_join) {
3276                 int join = wpas_p2p_peer_go(wpa_s,
3277                                             wpa_s->pending_join_dev_addr);
3278                 if (join < 0) {
3279                         wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
3280                                    "running a GO -> use GO Negotiation");
3281                         wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
3282                                          wpa_s->p2p_pin, wpa_s->p2p_wps_method,
3283                                          wpa_s->p2p_persistent_group, 0, 0, 0,
3284                                          wpa_s->p2p_go_intent,
3285                                          wpa_s->p2p_connect_freq,
3286                                          wpa_s->p2p_persistent_id,
3287                                          wpa_s->p2p_pd_before_go_neg,
3288                                          wpa_s->p2p_go_ht40);
3289                         return;
3290                 }
3291
3292                 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
3293                            "try to join the group", join ? "" :
3294                            " in older scan");
3295                 if (!join)
3296                         wpa_s->p2p_fallback_to_go_neg = 1;
3297         }
3298
3299         freq = p2p_get_oper_freq(wpa_s->global->p2p,
3300                                  wpa_s->pending_join_iface_addr);
3301         if (freq < 0 &&
3302             p2p_get_interface_addr(wpa_s->global->p2p,
3303                                    wpa_s->pending_join_dev_addr,
3304                                    iface_addr) == 0 &&
3305             os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
3306         {
3307                 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
3308                            "address for join from " MACSTR " to " MACSTR
3309                            " based on newly discovered P2P peer entry",
3310                            MAC2STR(wpa_s->pending_join_iface_addr),
3311                            MAC2STR(iface_addr));
3312                 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
3313                           ETH_ALEN);
3314
3315                 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3316                                          wpa_s->pending_join_iface_addr);
3317         }
3318         if (freq >= 0) {
3319                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3320                            "from P2P peer table: %d MHz", freq);
3321         }
3322         bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3323         if (bss) {
3324                 freq = bss->freq;
3325                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3326                            "from BSS table: %d MHz", freq);
3327         }
3328         if (freq > 0) {
3329                 u16 method;
3330
3331                 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
3332                         wpa_msg(wpa_s->parent, MSG_INFO,
3333                                 P2P_EVENT_GROUP_FORMATION_FAILURE
3334                                 "reason=FREQ_CONFLICT");
3335                         return;
3336                 }
3337
3338                 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
3339                            "prior to joining an existing group (GO " MACSTR
3340                            " freq=%u MHz)",
3341                            MAC2STR(wpa_s->pending_join_dev_addr), freq);
3342                 wpa_s->pending_pd_before_join = 1;
3343
3344                 switch (wpa_s->pending_join_wps_method) {
3345                 case WPS_PIN_DISPLAY:
3346                         method = WPS_CONFIG_KEYPAD;
3347                         break;
3348                 case WPS_PIN_KEYPAD:
3349                         method = WPS_CONFIG_DISPLAY;
3350                         break;
3351                 case WPS_PBC:
3352                         method = WPS_CONFIG_PUSHBUTTON;
3353                         break;
3354                 default:
3355                         method = 0;
3356                         break;
3357                 }
3358
3359                 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
3360                                                wpa_s->pending_join_dev_addr) ==
3361                      method)) {
3362                         /*
3363                          * We have already performed provision discovery for
3364                          * joining the group. Proceed directly to join
3365                          * operation without duplicated provision discovery. */
3366                         wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
3367                                    "with " MACSTR " already done - proceed to "
3368                                    "join",
3369                                    MAC2STR(wpa_s->pending_join_dev_addr));
3370                         wpa_s->pending_pd_before_join = 0;
3371                         goto start;
3372                 }
3373
3374                 if (p2p_prov_disc_req(wpa_s->global->p2p,
3375                                       wpa_s->pending_join_dev_addr, method, 1,
3376                                       freq, wpa_s->user_initiated_pd) < 0) {
3377                         wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
3378                                    "Discovery Request before joining an "
3379                                    "existing group");
3380                         wpa_s->pending_pd_before_join = 0;
3381                         goto start;
3382                 }
3383                 return;
3384         }
3385
3386         wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
3387         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3388         eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3389         wpas_p2p_check_join_scan_limit(wpa_s);
3390         return;
3391
3392 start:
3393         /* Start join operation immediately */
3394         wpas_p2p_join_start(wpa_s);
3395 }
3396
3397
3398 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq)
3399 {
3400         int ret;
3401         struct wpa_driver_scan_params params;
3402         struct wpabuf *wps_ie, *ies;
3403         size_t ielen;
3404         int freqs[2] = { 0, 0 };
3405
3406         os_memset(&params, 0, sizeof(params));
3407
3408         /* P2P Wildcard SSID */
3409         params.num_ssids = 1;
3410         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
3411         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
3412
3413         wpa_s->wps->dev.p2p = 1;
3414         wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
3415                                         wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
3416                                         NULL);
3417         if (wps_ie == NULL) {
3418                 wpas_p2p_scan_res_join(wpa_s, NULL);
3419                 return;
3420         }
3421
3422         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
3423         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
3424         if (ies == NULL) {
3425                 wpabuf_free(wps_ie);
3426                 wpas_p2p_scan_res_join(wpa_s, NULL);
3427                 return;
3428         }
3429         wpabuf_put_buf(ies, wps_ie);
3430         wpabuf_free(wps_ie);
3431
3432         p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
3433
3434         params.p2p_probe = 1;
3435         params.extra_ies = wpabuf_head(ies);
3436         params.extra_ies_len = wpabuf_len(ies);
3437         if (freq > 0) {
3438                 freqs[0] = freq;
3439                 params.freqs = freqs;
3440         }
3441
3442         /*
3443          * Run a scan to update BSS table and start Provision Discovery once
3444          * the new scan results become available.
3445          */
3446         ret = wpa_drv_scan(wpa_s, &params);
3447         if (!ret)
3448                 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
3449
3450         wpabuf_free(ies);
3451
3452         if (ret) {
3453                 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
3454                            "try again later");
3455                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3456                 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3457                 wpas_p2p_check_join_scan_limit(wpa_s);
3458         }
3459 }
3460
3461
3462 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
3463 {
3464         struct wpa_supplicant *wpa_s = eloop_ctx;
3465         wpas_p2p_join_scan_req(wpa_s, 0);
3466 }
3467
3468
3469 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
3470                          const u8 *dev_addr, enum p2p_wps_method wps_method,
3471                          int auto_join)
3472 {
3473         wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
3474                    MACSTR " dev " MACSTR ")%s",
3475                    MAC2STR(iface_addr), MAC2STR(dev_addr),
3476                    auto_join ? " (auto_join)" : "");
3477
3478         wpa_s->p2p_auto_pd = 0;
3479         wpa_s->p2p_auto_join = !!auto_join;
3480         os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
3481         os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
3482         wpa_s->pending_join_wps_method = wps_method;
3483
3484         /* Make sure we are not running find during connection establishment */
3485         wpas_p2p_stop_find(wpa_s);
3486
3487         wpa_s->p2p_join_scan_count = 0;
3488         wpas_p2p_join_scan(wpa_s, NULL);
3489         return 0;
3490 }
3491
3492
3493 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
3494 {
3495         struct wpa_supplicant *group;
3496         struct p2p_go_neg_results res;
3497         struct wpa_bss *bss;
3498
3499         group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
3500         if (group == NULL)
3501                 return -1;
3502         if (group != wpa_s) {
3503                 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
3504                           sizeof(group->p2p_pin));
3505                 group->p2p_wps_method = wpa_s->p2p_wps_method;
3506         } else {
3507                 /*
3508                  * Need to mark the current interface for p2p_group_formation
3509                  * when a separate group interface is not used. This is needed
3510                  * to allow p2p_cancel stop a pending p2p_connect-join.
3511                  * wpas_p2p_init_group_interface() addresses this for the case
3512                  * where a separate group interface is used.
3513                  */
3514                 wpa_s->global->p2p_group_formation = wpa_s;
3515         }
3516
3517         group->p2p_in_provisioning = 1;
3518         group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
3519
3520         os_memset(&res, 0, sizeof(res));
3521         os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
3522                   ETH_ALEN);
3523         res.wps_method = wpa_s->pending_join_wps_method;
3524         bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3525         if (bss) {
3526                 res.freq = bss->freq;
3527                 res.ssid_len = bss->ssid_len;
3528                 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
3529         }
3530
3531         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
3532                 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
3533                            "starting client");
3534                 wpa_drv_cancel_remain_on_channel(wpa_s);
3535                 wpa_s->off_channel_freq = 0;
3536                 wpa_s->roc_waiting_drv_freq = 0;
3537         }
3538         wpas_start_wps_enrollee(group, &res);
3539
3540         /*
3541          * Allow a longer timeout for join-a-running-group than normal 15
3542          * second group formation timeout since the GO may not have authorized
3543          * our connection yet.
3544          */
3545         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
3546         eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
3547                                wpa_s, NULL);
3548
3549         return 0;
3550 }
3551
3552
3553 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
3554                                 int *force_freq, int *pref_freq,
3555                                 int *oper_freq)
3556 {
3557         if (freq > 0) {
3558                 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3559                         wpa_printf(MSG_DEBUG, "P2P: The forced channel "
3560                                    "(%u MHz) is not supported for P2P uses",
3561                                    freq);
3562                         return -3;
3563                 }
3564
3565                 if (*oper_freq > 0 && freq != *oper_freq &&
3566                     !(wpa_s->drv_flags &
3567                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3568                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3569                                    "on %u MHz while connected on another "
3570                                    "channel (%u MHz)", freq, *oper_freq);
3571                         return -2;
3572                 }
3573                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3574                            "requested channel (%u MHz)", freq);
3575                 *force_freq = freq;
3576         } else if (*oper_freq > 0 &&
3577                    !p2p_supported_freq(wpa_s->global->p2p, *oper_freq)) {
3578                 if (!(wpa_s->drv_flags &
3579                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3580                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3581                                    "while connected on non-P2P supported "
3582                                    "channel (%u MHz)", *oper_freq);
3583                         return -2;
3584                 }
3585                 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
3586                            "(%u MHz) not available for P2P - try to use "
3587                            "another channel", *oper_freq);
3588                 *force_freq = 0;
3589         } else if (*oper_freq > 0 && *pref_freq == 0 &&
3590                    (wpa_s->drv_flags &
3591                     WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3592                 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer the channel we "
3593                            "are already using (%u MHz) on another interface",
3594                            *oper_freq);
3595                 *pref_freq = *oper_freq;
3596         } else if (*oper_freq > 0) {
3597                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3598                            "channel we are already using (%u MHz) on another "
3599                            "interface", *oper_freq);
3600                 *force_freq = *oper_freq;
3601         }
3602
3603         return 0;
3604 }
3605
3606
3607 /**
3608  * wpas_p2p_connect - Request P2P Group Formation to be started
3609  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3610  * @peer_addr: Address of the peer P2P Device
3611  * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
3612  * @persistent_group: Whether to create a persistent group
3613  * @auto_join: Whether to select join vs. GO Negotiation automatically
3614  * @join: Whether to join an existing group (as a client) instead of starting
3615  *      Group Owner negotiation; @peer_addr is BSSID in that case
3616  * @auth: Whether to only authorize the connection instead of doing that and
3617  *      initiating Group Owner negotiation
3618  * @go_intent: GO Intent or -1 to use default
3619  * @freq: Frequency for the group or 0 for auto-selection
3620  * @persistent_id: Persistent group credentials to use for forcing GO
3621  *      parameters or -1 to generate new values (SSID/passphrase)
3622  * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
3623  *      interoperability workaround when initiating group formation
3624  * @ht40: Start GO with 40 MHz channel width
3625  * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
3626  *      failure, -2 on failure due to channel not currently available,
3627  *      -3 if forced channel is not supported
3628  */
3629 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3630                      const char *pin, enum p2p_wps_method wps_method,
3631                      int persistent_group, int auto_join, int join, int auth,
3632                      int go_intent, int freq, int persistent_id, int pd,
3633                      int ht40)
3634 {
3635         int force_freq = 0, pref_freq = 0, oper_freq = 0;
3636         u8 bssid[ETH_ALEN];
3637         int ret = 0, res;
3638         enum wpa_driver_if_type iftype;
3639         const u8 *if_addr;
3640         struct wpa_ssid *ssid = NULL;
3641
3642         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3643                 return -1;
3644
3645         if (persistent_id >= 0) {
3646                 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
3647                 if (ssid == NULL || ssid->disabled != 2 ||
3648                     ssid->mode != WPAS_MODE_P2P_GO)
3649                         return -1;
3650         }
3651
3652         if (go_intent < 0)
3653                 go_intent = wpa_s->conf->p2p_go_intent;
3654
3655         if (!auth)
3656                 wpa_s->p2p_long_listen = 0;
3657
3658         wpa_s->p2p_wps_method = wps_method;
3659         wpa_s->p2p_persistent_group = !!persistent_group;
3660         wpa_s->p2p_persistent_id = persistent_id;
3661         wpa_s->p2p_go_intent = go_intent;
3662         wpa_s->p2p_connect_freq = freq;
3663         wpa_s->p2p_fallback_to_go_neg = 0;
3664         wpa_s->p2p_pd_before_go_neg = !!pd;
3665         wpa_s->p2p_go_ht40 = !!ht40;
3666
3667         if (pin)
3668                 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
3669         else if (wps_method == WPS_PIN_DISPLAY) {
3670                 ret = wps_generate_pin();
3671                 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
3672                             ret);
3673                 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
3674                            wpa_s->p2p_pin);
3675         } else
3676                 wpa_s->p2p_pin[0] = '\0';
3677
3678         if (join || auto_join) {
3679                 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
3680                 if (auth) {
3681                         wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
3682                                    "connect a running group from " MACSTR,
3683                                    MAC2STR(peer_addr));
3684                         os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
3685                         return ret;
3686                 }
3687                 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
3688                 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
3689                                            iface_addr) < 0) {
3690                         os_memcpy(iface_addr, peer_addr, ETH_ALEN);
3691                         p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
3692                                          dev_addr);
3693                 }
3694                 if (auto_join) {
3695                         os_get_time(&wpa_s->p2p_auto_started);
3696                         wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
3697                                    "%ld.%06ld",
3698                                    wpa_s->p2p_auto_started.sec,
3699                                    wpa_s->p2p_auto_started.usec);
3700                 }
3701                 wpa_s->user_initiated_pd = 1;
3702                 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
3703                                   auto_join) < 0)
3704                         return -1;
3705                 return ret;
3706         }
3707
3708         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3709             wpa_s->assoc_freq) {
3710                 oper_freq = wpa_s->assoc_freq;
3711         } else {
3712                 oper_freq = wpa_drv_shared_freq(wpa_s);
3713                 if (oper_freq < 0)
3714                         oper_freq = 0;
3715         }
3716
3717         res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
3718                                    &oper_freq);
3719         if (res)
3720                 return res;
3721
3722         wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
3723
3724         if (wpa_s->create_p2p_iface) {
3725                 /* Prepare to add a new interface for the group */
3726                 iftype = WPA_IF_P2P_GROUP;
3727                 if (go_intent == 15)
3728                         iftype = WPA_IF_P2P_GO;
3729                 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
3730                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3731                                    "interface for the group");
3732                         return -1;
3733                 }
3734
3735                 if_addr = wpa_s->pending_interface_addr;
3736         } else
3737                 if_addr = wpa_s->own_addr;
3738
3739         if (auth) {
3740                 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
3741                                          go_intent, if_addr,
3742                                          force_freq, persistent_group, ssid,
3743                                          pref_freq) < 0)
3744                         return -1;
3745                 return ret;
3746         }
3747
3748         if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
3749                                   go_intent, if_addr, force_freq,
3750                                   persistent_group, ssid, pref_freq) < 0) {
3751                 if (wpa_s->create_p2p_iface)
3752                         wpas_p2p_remove_pending_group_interface(wpa_s);
3753                 return -1;
3754         }
3755         return ret;
3756 }
3757
3758
3759 /**
3760  * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
3761  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3762  * @freq: Frequency of the channel in MHz
3763  * @duration: Duration of the stay on the channel in milliseconds
3764  *
3765  * This callback is called when the driver indicates that it has started the
3766  * requested remain-on-channel duration.
3767  */
3768 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3769                                    unsigned int freq, unsigned int duration)
3770 {
3771         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3772                 return;
3773         if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
3774                 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
3775                               wpa_s->pending_listen_duration);
3776                 wpa_s->pending_listen_freq = 0;
3777         }
3778 }
3779
3780
3781 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
3782                                  unsigned int timeout)
3783 {
3784         /* Limit maximum Listen state time based on driver limitation. */
3785         if (timeout > wpa_s->max_remain_on_chan)
3786                 timeout = wpa_s->max_remain_on_chan;
3787
3788         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3789                 return wpa_drv_p2p_listen(wpa_s, timeout);
3790
3791         return p2p_listen(wpa_s->global->p2p, timeout);
3792 }
3793
3794
3795 /**
3796  * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3797  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3798  * @freq: Frequency of the channel in MHz
3799  *
3800  * This callback is called when the driver indicates that a remain-on-channel
3801  * operation has been completed, i.e., the duration on the requested channel
3802  * has timed out.
3803  */
3804 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3805                                           unsigned int freq)
3806 {
3807         wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
3808                    "(p2p_long_listen=%d ms pending_action_tx=%p)",
3809                    wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
3810         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3811                 return;
3812         if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3813                 return; /* P2P module started a new operation */
3814         if (offchannel_pending_action_tx(wpa_s))
3815                 return;
3816         if (wpa_s->p2p_long_listen > 0)
3817                 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
3818         if (wpa_s->p2p_long_listen > 0) {
3819                 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
3820                 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
3821         }
3822 }
3823
3824
3825 /**
3826  * wpas_p2p_group_remove - Remove a P2P group
3827  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3828  * @ifname: Network interface name of the group interface or "*" to remove all
3829  *      groups
3830  * Returns: 0 on success, -1 on failure
3831  *
3832  * This function is used to remove a P2P group. This can be used to disconnect
3833  * from a group in which the local end is a P2P Client or to end a P2P Group in
3834  * case the local end is the Group Owner. If a virtual network interface was
3835  * created for this group, that interface will be removed. Otherwise, only the
3836  * configured P2P group network will be removed from the interface.
3837  */
3838 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3839 {
3840         struct wpa_global *global = wpa_s->global;
3841
3842         if (os_strcmp(ifname, "*") == 0) {
3843                 struct wpa_supplicant *prev;
3844                 wpa_s = global->ifaces;
3845                 while (wpa_s) {
3846                         prev = wpa_s;
3847                         wpa_s = wpa_s->next;
3848                         wpas_p2p_disconnect(prev);
3849                 }
3850                 return 0;
3851         }
3852
3853         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3854                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3855                         break;
3856         }
3857
3858         return wpas_p2p_disconnect(wpa_s);
3859 }
3860
3861
3862 static int freq_included(const struct p2p_channels *channels, unsigned int freq)
3863 {
3864         if (channels == NULL)
3865                 return 1; /* Assume no restrictions */
3866         return p2p_channels_includes_freq(channels, freq);
3867 }
3868
3869
3870 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3871                                    struct p2p_go_neg_results *params,
3872                                    int freq, int ht40,
3873                                    const struct p2p_channels *channels)
3874 {
3875         u8 bssid[ETH_ALEN];
3876         int res;
3877
3878         os_memset(params, 0, sizeof(*params));
3879         params->role_go = 1;
3880         params->ht40 = ht40;
3881         if (freq) {
3882                 if (!freq_included(channels, freq)) {
3883                         wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3884                                    "accepted", freq);
3885                         return -1;
3886                 }
3887                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3888                            "frequency %d MHz", freq);
3889                 params->freq = freq;
3890         } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3891                    wpa_s->conf->p2p_oper_channel >= 1 &&
3892                    wpa_s->conf->p2p_oper_channel <= 11 &&
3893                    freq_included(channels,
3894                                  2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
3895                 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
3896                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3897                            "frequency %d MHz", params->freq);
3898         } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
3899                     wpa_s->conf->p2p_oper_reg_class == 116 ||
3900                     wpa_s->conf->p2p_oper_reg_class == 117 ||
3901                     wpa_s->conf->p2p_oper_reg_class == 124 ||
3902                     wpa_s->conf->p2p_oper_reg_class == 126 ||
3903                     wpa_s->conf->p2p_oper_reg_class == 127) &&
3904                    freq_included(channels,
3905                                  5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
3906                 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
3907                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3908                            "frequency %d MHz", params->freq);
3909         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3910                    wpa_s->best_overall_freq > 0 &&
3911                    p2p_supported_freq(wpa_s->global->p2p,
3912                                       wpa_s->best_overall_freq) &&
3913                    freq_included(channels, wpa_s->best_overall_freq)) {
3914                 params->freq = wpa_s->best_overall_freq;
3915                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3916                            "channel %d MHz", params->freq);
3917         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3918                    wpa_s->best_24_freq > 0 &&
3919                    p2p_supported_freq(wpa_s->global->p2p,
3920                                       wpa_s->best_24_freq) &&
3921                    freq_included(channels, wpa_s->best_24_freq)) {
3922                 params->freq = wpa_s->best_24_freq;
3923                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3924                            "channel %d MHz", params->freq);
3925         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3926                    wpa_s->best_5_freq > 0 &&
3927                    p2p_supported_freq(wpa_s->global->p2p,
3928                                       wpa_s->best_5_freq) &&
3929                    freq_included(channels, wpa_s->best_5_freq)) {
3930                 params->freq = wpa_s->best_5_freq;
3931                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3932                            "channel %d MHz", params->freq);
3933         } else {
3934                 int chan;
3935                 for (chan = 0; chan < 11; chan++) {
3936                         params->freq = 2412 + chan * 5;
3937                         if (!wpas_p2p_disallowed_freq(wpa_s->global,
3938                                                       params->freq) &&
3939                             freq_included(channels, params->freq))
3940                                 break;
3941                 }
3942                 if (chan == 11) {
3943                         wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
3944                                    "allowed");
3945                         return -1;
3946                 }
3947                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3948                            "known)", params->freq);
3949         }
3950
3951         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3952             wpa_s->assoc_freq && !freq) {
3953                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3954                            "already using");
3955                 params->freq = wpa_s->assoc_freq;
3956                 if (!freq_included(channels, params->freq)) {
3957                         wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3958                                    "accepted", params->freq);
3959                         return -1;
3960                 }
3961         }
3962
3963         res = wpa_drv_shared_freq(wpa_s);
3964         if (res > 0 && !freq) {
3965                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3966                            "already using on a shared interface");
3967                 params->freq = res;
3968                 if (!freq_included(channels, params->freq)) {
3969                         wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3970                                    "accepted", params->freq);
3971                         return -1;
3972                 }
3973         } else if (res > 0 && freq != res &&
3974                    !(wpa_s->drv_flags &
3975                      WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3976                 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz "
3977                            "while connected on another channel (%u MHz)",
3978                            freq, res);
3979                 return -1;
3980         }
3981
3982         return 0;
3983 }
3984
3985
3986 static struct wpa_supplicant *
3987 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3988                          int go)
3989 {
3990         struct wpa_supplicant *group_wpa_s;
3991
3992         if (!wpas_p2p_create_iface(wpa_s)) {
3993                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
3994                         "operations");
3995                 return wpa_s;
3996         }
3997
3998         if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3999                                          WPA_IF_P2P_CLIENT) < 0) {
4000                 wpa_msg(wpa_s, MSG_ERROR, "P2P: Failed to add group interface");
4001                 return NULL;
4002         }
4003         group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
4004         if (group_wpa_s == NULL) {
4005                 wpa_msg(wpa_s, MSG_ERROR, "P2P: Failed to initialize group "
4006                         "interface");
4007                 wpas_p2p_remove_pending_group_interface(wpa_s);
4008                 return NULL;
4009         }
4010
4011         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
4012                 group_wpa_s->ifname);
4013         return group_wpa_s;
4014 }
4015
4016
4017 /**
4018  * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
4019  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4020  * @persistent_group: Whether to create a persistent group
4021  * @freq: Frequency for the group or 0 to indicate no hardcoding
4022  * Returns: 0 on success, -1 on failure
4023  *
4024  * This function creates a new P2P group with the local end as the Group Owner,
4025  * i.e., without using Group Owner Negotiation.
4026  */
4027 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
4028                        int freq, int ht40)
4029 {
4030         struct p2p_go_neg_results params;
4031         unsigned int r;
4032
4033         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4034                 return -1;
4035
4036         /* Make sure we are not running find during connection establishment */
4037         wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
4038         wpas_p2p_stop_find_oper(wpa_s);
4039
4040         if (freq == 2) {
4041                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
4042                            "band");
4043                 if (wpa_s->best_24_freq > 0 &&
4044                     p2p_supported_freq(wpa_s->global->p2p,
4045                                        wpa_s->best_24_freq)) {
4046                         freq = wpa_s->best_24_freq;
4047                         wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
4048                                    "channel: %d MHz", freq);
4049                 } else {
4050                         os_get_random((u8 *) &r, sizeof(r));
4051                         freq = 2412 + (r % 3) * 25;
4052                         wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
4053                                    "channel: %d MHz", freq);
4054                 }
4055         }
4056
4057         if (freq == 5) {
4058                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
4059                            "band");
4060                 if (wpa_s->best_5_freq > 0 &&
4061                     p2p_supported_freq(wpa_s->global->p2p,
4062                                        wpa_s->best_5_freq)) {
4063                         freq = wpa_s->best_5_freq;
4064                         wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
4065                                    "channel: %d MHz", freq);
4066                 } else {
4067                         os_get_random((u8 *) &r, sizeof(r));
4068                         freq = 5180 + (r % 4) * 20;
4069                         if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
4070                                 wpa_printf(MSG_DEBUG, "P2P: Could not select "
4071                                            "5 GHz channel for P2P group");
4072                                 return -1;
4073                         }
4074                         wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
4075                                    "channel: %d MHz", freq);
4076                 }
4077         }
4078
4079         if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
4080                 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
4081                            "(%u MHz) is not supported for P2P uses",
4082                            freq);
4083                 return -1;
4084         }
4085
4086         if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, NULL))
4087                 return -1;
4088         if (params.freq &&
4089             !p2p_supported_freq(wpa_s->global->p2p, params.freq)) {
4090                 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
4091                            "(%u MHz) is not supported for P2P uses",
4092                            params.freq);
4093                 return -1;
4094         }
4095         p2p_go_params(wpa_s->global->p2p, &params);
4096         params.persistent_group = persistent_group;
4097
4098         wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
4099         if (wpa_s == NULL)
4100                 return -1;
4101         wpas_start_wps_go(wpa_s, &params, 0);
4102
4103         return 0;
4104 }
4105
4106
4107 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
4108                                  struct wpa_ssid *params, int addr_allocated)
4109 {
4110         struct wpa_ssid *ssid;
4111
4112         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
4113         if (wpa_s == NULL)
4114                 return -1;
4115
4116         wpa_supplicant_ap_deinit(wpa_s);
4117
4118         ssid = wpa_config_add_network(wpa_s->conf);
4119         if (ssid == NULL)
4120                 return -1;
4121         wpa_config_set_network_defaults(ssid);
4122         ssid->temporary = 1;
4123         ssid->proto = WPA_PROTO_RSN;
4124         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
4125         ssid->group_cipher = WPA_CIPHER_CCMP;
4126         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
4127         ssid->ssid = os_malloc(params->ssid_len);
4128         if (ssid->ssid == NULL) {
4129                 wpa_config_remove_network(wpa_s->conf, ssid->id);
4130                 return -1;
4131         }
4132         os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
4133         ssid->ssid_len = params->ssid_len;
4134         ssid->p2p_group = 1;
4135         ssid->export_keys = 1;
4136         if (params->psk_set) {
4137                 os_memcpy(ssid->psk, params->psk, 32);
4138                 ssid->psk_set = 1;
4139         }
4140         if (params->passphrase)
4141                 ssid->passphrase = os_strdup(params->passphrase);
4142
4143         wpa_supplicant_select_network(wpa_s, ssid);
4144
4145         wpa_s->show_group_started = 1;
4146
4147         return 0;
4148 }
4149
4150
4151 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
4152                                   struct wpa_ssid *ssid, int addr_allocated,
4153                                   int freq, int ht40,
4154                                   const struct p2p_channels *channels)
4155 {
4156         struct p2p_go_neg_results params;
4157         int go = 0;
4158
4159         if (ssid->disabled != 2 || ssid->ssid == NULL)
4160                 return -1;
4161
4162         if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
4163             go == (ssid->mode == WPAS_MODE_P2P_GO)) {
4164                 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
4165                            "already running");
4166                 return 0;
4167         }
4168
4169         /* Make sure we are not running find during connection establishment */
4170         wpas_p2p_stop_find_oper(wpa_s);
4171
4172         wpa_s->p2p_fallback_to_go_neg = 0;
4173
4174         if (ssid->mode == WPAS_MODE_INFRA)
4175                 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
4176
4177         if (ssid->mode != WPAS_MODE_P2P_GO)
4178                 return -1;
4179
4180         if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, channels))
4181                 return -1;
4182
4183         params.role_go = 1;
4184         params.psk_set = ssid->psk_set;
4185         if (params.psk_set)
4186                 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
4187         if (ssid->passphrase) {
4188                 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
4189                         wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
4190                                    "persistent group");
4191                         return -1;
4192                 }
4193                 os_strlcpy(params.passphrase, ssid->passphrase,
4194                            sizeof(params.passphrase));
4195         }
4196         os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
4197         params.ssid_len = ssid->ssid_len;
4198         params.persistent_group = 1;
4199
4200         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
4201         if (wpa_s == NULL)
4202                 return -1;
4203
4204         wpas_start_wps_go(wpa_s, &params, 0);
4205
4206         return 0;
4207 }
4208
4209
4210 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
4211                                struct wpabuf *proberesp_ies)
4212 {
4213         struct wpa_supplicant *wpa_s = ctx;
4214         if (wpa_s->ap_iface) {
4215                 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
4216                 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
4217                         wpabuf_free(beacon_ies);
4218                         wpabuf_free(proberesp_ies);
4219                         return;
4220                 }
4221                 if (beacon_ies) {
4222                         wpabuf_free(hapd->p2p_beacon_ie);
4223                         hapd->p2p_beacon_ie = beacon_ies;
4224                 }
4225                 wpabuf_free(hapd->p2p_probe_resp_ie);
4226                 hapd->p2p_probe_resp_ie = proberesp_ies;
4227         } else {
4228                 wpabuf_free(beacon_ies);
4229                 wpabuf_free(proberesp_ies);
4230         }
4231         wpa_supplicant_ap_update_beacon(wpa_s);
4232 }
4233
4234
4235 static void wpas_p2p_idle_update(void *ctx, int idle)
4236 {
4237         struct wpa_supplicant *wpa_s = ctx;
4238         if (!wpa_s->ap_iface)
4239                 return;
4240         wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
4241         if (idle)
4242                 wpas_p2p_set_group_idle_timeout(wpa_s);
4243         else
4244                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4245 }
4246
4247
4248 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
4249                                        struct wpa_ssid *ssid)
4250 {
4251         struct p2p_group *group;
4252         struct p2p_group_config *cfg;
4253
4254         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4255                 return NULL;
4256         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4257                 return NULL;
4258
4259         cfg = os_zalloc(sizeof(*cfg));
4260         if (cfg == NULL)
4261                 return NULL;
4262
4263         if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
4264                 cfg->persistent_group = 2;
4265         else if (ssid->p2p_persistent_group)
4266                 cfg->persistent_group = 1;
4267         os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
4268         if (wpa_s->max_stations &&
4269             wpa_s->max_stations < wpa_s->conf->max_num_sta)
4270                 cfg->max_clients = wpa_s->max_stations;
4271         else
4272                 cfg->max_clients = wpa_s->conf->max_num_sta;
4273         os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
4274         cfg->ssid_len = ssid->ssid_len;
4275         cfg->cb_ctx = wpa_s;
4276         cfg->ie_update = wpas_p2p_ie_update;
4277         cfg->idle_update = wpas_p2p_idle_update;
4278
4279         group = p2p_group_init(wpa_s->global->p2p, cfg);
4280         if (group == NULL)
4281                 os_free(cfg);
4282         if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
4283                 p2p_group_notif_formation_done(group);
4284         wpa_s->p2p_group = group;
4285         return group;
4286 }
4287
4288
4289 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4290                           int registrar)
4291 {
4292         struct wpa_ssid *ssid = wpa_s->current_ssid;
4293
4294         if (!wpa_s->p2p_in_provisioning) {
4295                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
4296                            "provisioning not in progress");
4297                 return;
4298         }
4299
4300         if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4301                 u8 go_dev_addr[ETH_ALEN];
4302                 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
4303                 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4304                                           ssid->ssid_len);
4305                 /* Clear any stored provisioning info */
4306                 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
4307         }
4308
4309         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
4310                              NULL);
4311         if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4312                 /*
4313                  * Use a separate timeout for initial data connection to
4314                  * complete to allow the group to be removed automatically if
4315                  * something goes wrong in this step before the P2P group idle
4316                  * timeout mechanism is taken into use.
4317                  */
4318                 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
4319                                        wpas_p2p_group_formation_timeout,
4320                                        wpa_s->parent, NULL);
4321         }
4322         if (wpa_s->global->p2p)
4323                 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
4324         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4325                 wpa_drv_wps_success_cb(wpa_s, peer_addr);
4326         wpas_group_formation_completed(wpa_s, 1);
4327 }
4328
4329
4330 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
4331                          struct wps_event_fail *fail)
4332 {
4333         if (!wpa_s->p2p_in_provisioning) {
4334                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
4335                            "provisioning not in progress");
4336                 return;
4337         }
4338
4339         if (wpa_s->go_params) {
4340                 p2p_clear_provisioning_info(
4341                         wpa_s->global->p2p,
4342                         wpa_s->go_params->peer_device_addr);
4343         }
4344
4345         wpas_notify_p2p_wps_failed(wpa_s, fail);
4346 }
4347
4348
4349 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4350                        const char *config_method,
4351                        enum wpas_p2p_prov_disc_use use)
4352 {
4353         u16 config_methods;
4354
4355         wpa_s->p2p_fallback_to_go_neg = 0;
4356         wpa_s->pending_pd_use = NORMAL_PD;
4357         if (os_strncmp(config_method, "display", 7) == 0)
4358                 config_methods = WPS_CONFIG_DISPLAY;
4359         else if (os_strncmp(config_method, "keypad", 6) == 0)
4360                 config_methods = WPS_CONFIG_KEYPAD;
4361         else if (os_strncmp(config_method, "pbc", 3) == 0 ||
4362                  os_strncmp(config_method, "pushbutton", 10) == 0)
4363                 config_methods = WPS_CONFIG_PUSHBUTTON;
4364         else {
4365                 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
4366                 return -1;
4367         }
4368
4369         if (use == WPAS_P2P_PD_AUTO) {
4370                 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
4371                 wpa_s->pending_pd_config_methods = config_methods;
4372                 wpa_s->p2p_auto_pd = 1;
4373                 wpa_s->p2p_auto_join = 0;
4374                 wpa_s->pending_pd_before_join = 0;
4375                 wpa_s->auto_pd_scan_retry = 0;
4376                 wpas_p2p_stop_find(wpa_s);
4377                 wpa_s->p2p_join_scan_count = 0;
4378                 os_get_time(&wpa_s->p2p_auto_started);
4379                 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
4380                            wpa_s->p2p_auto_started.sec,
4381                            wpa_s->p2p_auto_started.usec);
4382                 wpas_p2p_join_scan(wpa_s, NULL);
4383                 return 0;
4384         }
4385
4386         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4387                 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
4388                                                  config_methods,
4389                                                  use == WPAS_P2P_PD_FOR_JOIN);
4390         }
4391
4392         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
4393                 return -1;
4394
4395         return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
4396                                  config_methods, use == WPAS_P2P_PD_FOR_JOIN,
4397                                  0, 1);
4398 }
4399
4400
4401 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
4402                               char *end)
4403 {
4404         return p2p_scan_result_text(ies, ies_len, buf, end);
4405 }
4406
4407
4408 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
4409 {
4410         if (!offchannel_pending_action_tx(wpa_s))
4411                 return;
4412
4413         wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
4414                    "operation request");
4415         offchannel_clear_pending_action_tx(wpa_s);
4416 }
4417
4418
4419 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
4420                   enum p2p_discovery_type type,
4421                   unsigned int num_req_dev_types, const u8 *req_dev_types,
4422                   const u8 *dev_id, unsigned int search_delay)
4423 {
4424         wpas_p2p_clear_pending_action_tx(wpa_s);
4425         wpa_s->p2p_long_listen = 0;
4426
4427         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4428                 return wpa_drv_p2p_find(wpa_s, timeout, type);
4429
4430         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
4431             wpa_s->p2p_in_provisioning)
4432                 return -1;
4433
4434         wpa_supplicant_cancel_sched_scan(wpa_s);
4435
4436         return p2p_find(wpa_s->global->p2p, timeout, type,
4437                         num_req_dev_types, req_dev_types, dev_id,
4438                         search_delay);
4439 }
4440
4441
4442 static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
4443 {
4444         wpas_p2p_clear_pending_action_tx(wpa_s);
4445         wpa_s->p2p_long_listen = 0;
4446         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4447         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4448         wpa_s->global->p2p_cb_on_scan_complete = 0;
4449
4450         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4451                 wpa_drv_p2p_stop_find(wpa_s);
4452                 return 1;
4453         }
4454
4455         if (wpa_s->global->p2p)
4456                 p2p_stop_find(wpa_s->global->p2p);
4457
4458         return 0;
4459 }
4460
4461
4462 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
4463 {
4464         if (wpas_p2p_stop_find_oper(wpa_s) > 0)
4465                 return;
4466         wpas_p2p_remove_pending_group_interface(wpa_s);
4467 }
4468
4469
4470 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4471 {
4472         struct wpa_supplicant *wpa_s = eloop_ctx;
4473         wpa_s->p2p_long_listen = 0;
4474 }
4475
4476
4477 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
4478 {
4479         int res;
4480
4481         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4482                 return -1;
4483
4484         wpa_supplicant_cancel_sched_scan(wpa_s);
4485         wpas_p2p_clear_pending_action_tx(wpa_s);
4486
4487         if (timeout == 0) {
4488                 /*
4489                  * This is a request for unlimited Listen state. However, at
4490                  * least for now, this is mapped to a Listen state for one
4491                  * hour.
4492                  */
4493                 timeout = 3600;
4494         }
4495         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4496         wpa_s->p2p_long_listen = 0;
4497
4498         /*
4499          * Stop previous find/listen operation to avoid trying to request a new
4500          * remain-on-channel operation while the driver is still running the
4501          * previous one.
4502          */
4503         if (wpa_s->global->p2p)
4504                 p2p_stop_find(wpa_s->global->p2p);
4505
4506         res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
4507         if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
4508                 wpa_s->p2p_long_listen = timeout * 1000;
4509                 eloop_register_timeout(timeout, 0,
4510                                        wpas_p2p_long_listen_timeout,
4511                                        wpa_s, NULL);
4512         }
4513
4514         return res;
4515 }
4516
4517
4518 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
4519                           u8 *buf, size_t len, int p2p_group)
4520 {
4521         struct wpabuf *p2p_ie;
4522         int ret;
4523
4524         if (wpa_s->global->p2p_disabled)
4525                 return -1;
4526         if (wpa_s->global->p2p == NULL)
4527                 return -1;
4528         if (bss == NULL)
4529                 return -1;
4530
4531         p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
4532         ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
4533                                p2p_group, p2p_ie);
4534         wpabuf_free(p2p_ie);
4535
4536         return ret;
4537 }
4538
4539
4540 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
4541                           const u8 *dst, const u8 *bssid,
4542                           const u8 *ie, size_t ie_len, int ssi_signal)
4543 {
4544         if (wpa_s->global->p2p_disabled)
4545                 return 0;
4546         if (wpa_s->global->p2p == NULL)
4547                 return 0;
4548
4549         switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
4550                                  ie, ie_len)) {
4551         case P2P_PREQ_NOT_P2P:
4552                 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
4553                                  ssi_signal);
4554                 /* fall through */
4555         case P2P_PREQ_MALFORMED:
4556         case P2P_PREQ_NOT_LISTEN:
4557         case P2P_PREQ_NOT_PROCESSED:
4558         default: /* make gcc happy */
4559                 return 0;
4560         case P2P_PREQ_PROCESSED:
4561                 return 1;
4562         }
4563 }
4564
4565
4566 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
4567                         const u8 *sa, const u8 *bssid,
4568                         u8 category, const u8 *data, size_t len, int freq)
4569 {
4570         if (wpa_s->global->p2p_disabled)
4571                 return;
4572         if (wpa_s->global->p2p == NULL)
4573                 return;
4574
4575         p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
4576                       freq);
4577 }
4578
4579
4580 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
4581 {
4582         if (wpa_s->global->p2p_disabled)
4583                 return;
4584         if (wpa_s->global->p2p == NULL)
4585                 return;
4586
4587         p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4588 }
4589
4590
4591 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
4592 {
4593         p2p_group_deinit(wpa_s->p2p_group);
4594         wpa_s->p2p_group = NULL;
4595
4596         wpa_s->ap_configured_cb = NULL;
4597         wpa_s->ap_configured_cb_ctx = NULL;
4598         wpa_s->ap_configured_cb_data = NULL;
4599         wpa_s->connect_without_scan = NULL;
4600 }
4601
4602
4603 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
4604 {
4605         wpa_s->p2p_long_listen = 0;
4606
4607         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4608                 return wpa_drv_p2p_reject(wpa_s, addr);
4609
4610         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4611                 return -1;
4612
4613         return p2p_reject(wpa_s->global->p2p, addr);
4614 }
4615
4616
4617 /* Invite to reinvoke a persistent group */
4618 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4619                     struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
4620                     int ht40, int pref_freq)
4621 {
4622         enum p2p_invite_role role;
4623         u8 *bssid = NULL, bssid_buf[ETH_ALEN];
4624         int force_freq = 0, oper_freq = 0;
4625         int res;
4626
4627         wpa_s->p2p_persistent_go_freq = freq;
4628         wpa_s->p2p_go_ht40 = !!ht40;
4629         if (ssid->mode == WPAS_MODE_P2P_GO) {
4630                 role = P2P_INVITE_ROLE_GO;
4631                 if (peer_addr == NULL) {
4632                         wpa_printf(MSG_DEBUG, "P2P: Missing peer "
4633                                    "address in invitation command");
4634                         return -1;
4635                 }
4636                 if (wpas_p2p_create_iface(wpa_s)) {
4637                         if (wpas_p2p_add_group_interface(wpa_s,
4638                                                          WPA_IF_P2P_GO) < 0) {
4639                                 wpa_printf(MSG_ERROR, "P2P: Failed to "
4640                                            "allocate a new interface for the "
4641                                            "group");
4642                                 return -1;
4643                         }
4644                         bssid = wpa_s->pending_interface_addr;
4645                 } else
4646                         bssid = wpa_s->own_addr;
4647         } else {
4648                 role = P2P_INVITE_ROLE_CLIENT;
4649                 peer_addr = ssid->bssid;
4650         }
4651         wpa_s->pending_invite_ssid_id = ssid->id;
4652
4653         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid_buf) == 0 &&
4654             wpa_s->assoc_freq) {
4655                 oper_freq = wpa_s->assoc_freq;
4656                 if (bssid == NULL)
4657                         bssid = bssid_buf;
4658         } else {
4659                 oper_freq = wpa_drv_shared_freq(wpa_s);
4660                 if (oper_freq < 0)
4661                         oper_freq = 0;
4662         }
4663
4664         res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
4665                                    &oper_freq);
4666         if (res)
4667                 return res;
4668
4669         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4670                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4671                                           ssid->ssid, ssid->ssid_len,
4672                                           go_dev_addr, 1);
4673
4674         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4675                 return -1;
4676
4677         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4678                           ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
4679                           1, pref_freq);
4680 }
4681
4682
4683 /* Invite to join an active group */
4684 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
4685                           const u8 *peer_addr, const u8 *go_dev_addr)
4686 {
4687         struct wpa_global *global = wpa_s->global;
4688         enum p2p_invite_role role;
4689         u8 *bssid = NULL, bssid_buf[ETH_ALEN];
4690         struct wpa_ssid *ssid;
4691         int persistent;
4692         int force_freq = 0, oper_freq = 0, pref_freq = 0;
4693         int res;
4694
4695         wpa_s->p2p_persistent_go_freq = 0;
4696         wpa_s->p2p_go_ht40 = 0;
4697
4698         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4699                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4700                         break;
4701         }
4702         if (wpa_s == NULL) {
4703                 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
4704                 return -1;
4705         }
4706
4707         ssid = wpa_s->current_ssid;
4708         if (ssid == NULL) {
4709                 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
4710                            "invitation");
4711                 return -1;
4712         }
4713
4714         persistent = ssid->p2p_persistent_group &&
4715                 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
4716                                         ssid->ssid, ssid->ssid_len);
4717
4718         if (ssid->mode == WPAS_MODE_P2P_GO) {
4719                 role = P2P_INVITE_ROLE_ACTIVE_GO;
4720                 bssid = wpa_s->own_addr;
4721                 if (go_dev_addr == NULL)
4722                         go_dev_addr = wpa_s->global->p2p_dev_addr;
4723         } else {
4724                 role = P2P_INVITE_ROLE_CLIENT;
4725                 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
4726                         wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
4727                                    "invite to current group");
4728                         return -1;
4729                 }
4730                 bssid = wpa_s->bssid;
4731                 if (go_dev_addr == NULL &&
4732                     !is_zero_ether_addr(wpa_s->go_dev_addr))
4733                         go_dev_addr = wpa_s->go_dev_addr;
4734         }
4735         wpa_s->parent->pending_invite_ssid_id = -1;
4736
4737         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4738                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4739                                           ssid->ssid, ssid->ssid_len,
4740                                           go_dev_addr, persistent);
4741
4742         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4743                 return -1;
4744
4745         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid_buf) == 0 &&
4746             wpa_s->assoc_freq) {
4747                 oper_freq = wpa_s->assoc_freq;
4748                 if (bssid == NULL)
4749                         bssid = bssid_buf;
4750         } else {
4751                 oper_freq = wpa_drv_shared_freq(wpa_s);
4752                 if (oper_freq < 0)
4753                         oper_freq = 0;
4754         }
4755
4756         res = wpas_p2p_setup_freqs(wpa_s, 0, &force_freq, &pref_freq,
4757                                    &oper_freq);
4758         if (res)
4759                 return res;
4760
4761         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4762                           ssid->ssid, ssid->ssid_len, force_freq,
4763                           go_dev_addr, persistent, pref_freq);
4764 }
4765
4766
4767 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
4768 {
4769         struct wpa_ssid *ssid = wpa_s->current_ssid;
4770         const char *ssid_txt;
4771         u8 go_dev_addr[ETH_ALEN];
4772         int network_id = -1;
4773         int persistent;
4774         int freq;
4775
4776         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
4777                 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4778                                      wpa_s->parent, NULL);
4779         }
4780
4781         if (!wpa_s->show_group_started || !ssid)
4782                 goto done;
4783
4784         wpa_s->show_group_started = 0;
4785
4786         ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
4787         os_memset(go_dev_addr, 0, ETH_ALEN);
4788         if (ssid->bssid_set)
4789                 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
4790         persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4791                                                ssid->ssid_len);
4792         os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
4793
4794         if (wpa_s->global->p2p_group_formation == wpa_s)
4795                 wpa_s->global->p2p_group_formation = NULL;
4796
4797         freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
4798                 (int) wpa_s->assoc_freq;
4799         if (ssid->passphrase == NULL && ssid->psk_set) {
4800                 char psk[65];
4801                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
4802                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4803                         "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
4804                         MACSTR "%s",
4805                         wpa_s->ifname, ssid_txt, freq, psk,
4806                         MAC2STR(go_dev_addr),
4807                         persistent ? " [PERSISTENT]" : "");
4808         } else {
4809                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4810                         "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
4811                         "go_dev_addr=" MACSTR "%s",
4812                         wpa_s->ifname, ssid_txt, freq,
4813                         ssid->passphrase ? ssid->passphrase : "",
4814                         MAC2STR(go_dev_addr),
4815                         persistent ? " [PERSISTENT]" : "");
4816         }
4817
4818         if (persistent)
4819                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
4820                                                              ssid, go_dev_addr);
4821         if (network_id < 0)
4822                 network_id = ssid->id;
4823         wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
4824
4825 done:
4826         if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
4827             wpa_s->global->p2p != NULL) {
4828                 wpa_s->global->p2p_cb_on_scan_complete = 0;
4829                 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
4830                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
4831                                 "continued after successful connection");
4832                         p2p_increase_search_delay(
4833                                 wpa_s->global->p2p,
4834                                 wpas_p2p_search_delay(wpa_s));
4835                 }
4836         }
4837 }
4838
4839
4840 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
4841                           u32 interval1, u32 duration2, u32 interval2)
4842 {
4843         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4844                 return -1;
4845         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4846                 return -1;
4847
4848         if (wpa_s->wpa_state < WPA_ASSOCIATED ||
4849             wpa_s->current_ssid == NULL ||
4850             wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
4851                 return -1;
4852
4853         return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
4854                                 wpa_s->own_addr, wpa_s->assoc_freq,
4855                                 duration1, interval1, duration2, interval2);
4856 }
4857
4858
4859 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
4860                         unsigned int interval)
4861 {
4862         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4863                 return -1;
4864
4865         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4866                 return -1;
4867
4868         return p2p_ext_listen(wpa_s->global->p2p, period, interval);
4869 }
4870
4871
4872 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
4873 {
4874         if (wpa_s->current_ssid == NULL) {
4875                 /*
4876                  * current_ssid can be cleared when P2P client interface gets
4877                  * disconnected, so assume this interface was used as P2P
4878                  * client.
4879                  */
4880                 return 1;
4881         }
4882         return wpa_s->current_ssid->p2p_group &&
4883                 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
4884 }
4885
4886
4887 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
4888 {
4889         struct wpa_supplicant *wpa_s = eloop_ctx;
4890
4891         if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
4892                 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
4893                            "disabled");
4894                 return;
4895         }
4896
4897         wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
4898                    "group");
4899         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
4900 }
4901
4902
4903 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
4904 {
4905         int timeout;
4906
4907         if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4908                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
4909
4910         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4911                 return;
4912
4913         timeout = wpa_s->conf->p2p_group_idle;
4914         if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
4915             (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
4916             timeout = P2P_MAX_CLIENT_IDLE;
4917
4918         if (timeout == 0)
4919                 return;
4920
4921         if (timeout < 0) {
4922                 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
4923                         timeout = 0; /* special client mode no-timeout */
4924                 else
4925                         return;
4926         }
4927
4928         if (wpa_s->p2p_in_provisioning) {
4929                 /*
4930                  * Use the normal group formation timeout during the
4931                  * provisioning phase to avoid terminating this process too
4932                  * early due to group idle timeout.
4933                  */
4934                 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4935                            "during provisioning");
4936                 return;
4937         }
4938
4939         if (wpa_s->show_group_started) {
4940                 /*
4941                  * Use the normal group formation timeout between the end of
4942                  * the provisioning phase and completion of 4-way handshake to
4943                  * avoid terminating this process too early due to group idle
4944                  * timeout.
4945                  */
4946                 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4947                            "while waiting for initial 4-way handshake to "
4948                            "complete");
4949                 return;
4950         }
4951
4952         wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
4953                    timeout);
4954         eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
4955                                wpa_s, NULL);
4956 }
4957
4958
4959 /* Returns 1 if the interface was removed */
4960 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4961                           u16 reason_code, const u8 *ie, size_t ie_len,
4962                           int locally_generated)
4963 {
4964         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4965                 return 0;
4966         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4967                 return 0;
4968
4969         if (!locally_generated)
4970                 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4971                                  ie_len);
4972
4973         if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
4974             wpa_s->current_ssid &&
4975             wpa_s->current_ssid->p2p_group &&
4976             wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
4977                 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
4978                            "session is ending");
4979                 if (wpas_p2p_group_delete(wpa_s,
4980                                           P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
4981                     > 0)
4982                         return 1;
4983         }
4984
4985         return 0;
4986 }
4987
4988
4989 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4990                              u16 reason_code, const u8 *ie, size_t ie_len,
4991                              int locally_generated)
4992 {
4993         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4994                 return;
4995         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4996                 return;
4997
4998         if (!locally_generated)
4999                 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
5000                                    ie_len);
5001 }
5002
5003
5004 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
5005 {
5006         struct p2p_data *p2p = wpa_s->global->p2p;
5007
5008         if (p2p == NULL)
5009                 return;
5010
5011         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
5012                 return;
5013
5014         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
5015                 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
5016
5017         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
5018                 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
5019
5020         if (wpa_s->wps &&
5021             (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
5022                 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
5023
5024         if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
5025                 p2p_set_uuid(p2p, wpa_s->wps->uuid);
5026
5027         if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
5028                 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
5029                 p2p_set_model_name(p2p, wpa_s->conf->model_name);
5030                 p2p_set_model_number(p2p, wpa_s->conf->model_number);
5031                 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
5032         }
5033
5034         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
5035                 p2p_set_sec_dev_types(p2p,
5036                                       (void *) wpa_s->conf->sec_device_type,
5037                                       wpa_s->conf->num_sec_device_types);
5038
5039         if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
5040                 int i;
5041                 p2p_remove_wps_vendor_extensions(p2p);
5042                 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
5043                         if (wpa_s->conf->wps_vendor_ext[i] == NULL)
5044                                 continue;
5045                         p2p_add_wps_vendor_extension(
5046                                 p2p, wpa_s->conf->wps_vendor_ext[i]);
5047                 }
5048         }
5049
5050         if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
5051             wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
5052                 char country[3];
5053                 country[0] = wpa_s->conf->country[0];
5054                 country[1] = wpa_s->conf->country[1];
5055                 country[2] = 0x04;
5056                 p2p_set_country(p2p, country);
5057         }
5058
5059         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
5060                 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
5061                                      wpa_s->conf->p2p_ssid_postfix ?
5062                                      os_strlen(wpa_s->conf->p2p_ssid_postfix) :
5063                                      0);
5064         }
5065
5066         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
5067                 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
5068
5069         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
5070                 u8 reg_class, channel;
5071                 int ret;
5072                 unsigned int r;
5073                 if (wpa_s->conf->p2p_listen_reg_class &&
5074                     wpa_s->conf->p2p_listen_channel) {
5075                         reg_class = wpa_s->conf->p2p_listen_reg_class;
5076                         channel = wpa_s->conf->p2p_listen_channel;
5077                 } else {
5078                         reg_class = 81;
5079                         /*
5080                          * Pick one of the social channels randomly as the
5081                          * listen channel.
5082                          */
5083                         os_get_random((u8 *) &r, sizeof(r));
5084                         channel = 1 + (r % 3) * 5;
5085                 }
5086                 ret = p2p_set_listen_channel(p2p, reg_class, channel);
5087                 if (ret)
5088                         wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
5089                                    "failed: %d", ret);
5090         }
5091         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
5092                 u8 op_reg_class, op_channel, cfg_op_channel;
5093                 int ret = 0;
5094                 unsigned int r;
5095                 if (wpa_s->conf->p2p_oper_reg_class &&
5096                     wpa_s->conf->p2p_oper_channel) {
5097                         op_reg_class = wpa_s->conf->p2p_oper_reg_class;
5098                         op_channel = wpa_s->conf->p2p_oper_channel;
5099                         cfg_op_channel = 1;
5100                 } else {
5101                         op_reg_class = 81;
5102                         /*
5103                          * Use random operation channel from (1, 6, 11)
5104                          *if no other preference is indicated.
5105                          */
5106                         os_get_random((u8 *) &r, sizeof(r));
5107                         op_channel = 1 + (r % 3) * 5;
5108                         cfg_op_channel = 0;
5109                 }
5110                 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
5111                                            cfg_op_channel);
5112                 if (ret)
5113                         wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
5114                                    "failed: %d", ret);
5115         }
5116
5117         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
5118                 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
5119                                       wpa_s->conf->p2p_pref_chan) < 0) {
5120                         wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
5121                                    "update failed");
5122                 }
5123         }
5124 }
5125
5126
5127 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
5128                      int duration)
5129 {
5130         if (!wpa_s->ap_iface)
5131                 return -1;
5132         return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
5133                                    duration);
5134 }
5135
5136
5137 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
5138 {
5139         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5140                 return -1;
5141         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5142                 return -1;
5143
5144         wpa_s->global->cross_connection = enabled;
5145         p2p_set_cross_connect(wpa_s->global->p2p, enabled);
5146
5147         if (!enabled) {
5148                 struct wpa_supplicant *iface;
5149
5150                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
5151                 {
5152                         if (iface->cross_connect_enabled == 0)
5153                                 continue;
5154
5155                         iface->cross_connect_enabled = 0;
5156                         iface->cross_connect_in_use = 0;
5157                         wpa_msg(iface->parent, MSG_INFO,
5158                                 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
5159                                 iface->ifname, iface->cross_connect_uplink);
5160                 }
5161         }
5162
5163         return 0;
5164 }
5165
5166
5167 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
5168 {
5169         struct wpa_supplicant *iface;
5170
5171         if (!uplink->global->cross_connection)
5172                 return;
5173
5174         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
5175                 if (!iface->cross_connect_enabled)
5176                         continue;
5177                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
5178                     0)
5179                         continue;
5180                 if (iface->ap_iface == NULL)
5181                         continue;
5182                 if (iface->cross_connect_in_use)
5183                         continue;
5184
5185                 iface->cross_connect_in_use = 1;
5186                 wpa_msg(iface->parent, MSG_INFO,
5187                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
5188                         iface->ifname, iface->cross_connect_uplink);
5189         }
5190 }
5191
5192
5193 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
5194 {
5195         struct wpa_supplicant *iface;
5196
5197         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
5198                 if (!iface->cross_connect_enabled)
5199                         continue;
5200                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
5201                     0)
5202                         continue;
5203                 if (!iface->cross_connect_in_use)
5204                         continue;
5205
5206                 wpa_msg(iface->parent, MSG_INFO,
5207                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
5208                         iface->ifname, iface->cross_connect_uplink);
5209                 iface->cross_connect_in_use = 0;
5210         }
5211 }
5212
5213
5214 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
5215 {
5216         if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
5217             wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
5218             wpa_s->cross_connect_disallowed)
5219                 wpas_p2p_disable_cross_connect(wpa_s);
5220         else
5221                 wpas_p2p_enable_cross_connect(wpa_s);
5222         if (!wpa_s->ap_iface &&
5223             eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
5224                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
5225 }
5226
5227
5228 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
5229 {
5230         wpas_p2p_disable_cross_connect(wpa_s);
5231         if (!wpa_s->ap_iface &&
5232             !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
5233                                          wpa_s, NULL))
5234                 wpas_p2p_set_group_idle_timeout(wpa_s);
5235 }
5236
5237
5238 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
5239 {
5240         struct wpa_supplicant *iface;
5241
5242         if (!wpa_s->global->cross_connection)
5243                 return;
5244
5245         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
5246                 if (iface == wpa_s)
5247                         continue;
5248                 if (iface->drv_flags &
5249                     WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
5250                         continue;
5251                 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
5252                         continue;
5253
5254                 wpa_s->cross_connect_enabled = 1;
5255                 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
5256                            sizeof(wpa_s->cross_connect_uplink));
5257                 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
5258                            "%s to %s whenever uplink is available",
5259                            wpa_s->ifname, wpa_s->cross_connect_uplink);
5260
5261                 if (iface->ap_iface || iface->current_ssid == NULL ||
5262                     iface->current_ssid->mode != WPAS_MODE_INFRA ||
5263                     iface->cross_connect_disallowed ||
5264                     iface->wpa_state != WPA_COMPLETED)
5265                         break;
5266
5267                 wpa_s->cross_connect_in_use = 1;
5268                 wpa_msg(wpa_s->parent, MSG_INFO,
5269                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
5270                         wpa_s->ifname, wpa_s->cross_connect_uplink);
5271                 break;
5272         }
5273 }
5274
5275
5276 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
5277 {
5278         if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
5279             !wpa_s->p2p_in_provisioning)
5280                 return 0; /* not P2P client operation */
5281
5282         wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
5283                    "session overlap");
5284         if (wpa_s != wpa_s->parent)
5285                 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
5286
5287         if (wpa_s->global->p2p)
5288                 p2p_group_formation_failed(wpa_s->global->p2p);
5289
5290         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5291                              wpa_s->parent, NULL);
5292
5293         wpas_group_formation_completed(wpa_s, 0);
5294         return 1;
5295 }
5296
5297
5298 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
5299 {
5300         struct p2p_channels chan;
5301
5302         if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
5303                 return;
5304
5305         os_memset(&chan, 0, sizeof(chan));
5306         if (wpas_p2p_setup_channels(wpa_s, &chan)) {
5307                 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
5308                            "channel list");
5309                 return;
5310         }
5311
5312         p2p_update_channel_list(wpa_s->global->p2p, &chan);
5313 }
5314
5315
5316 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
5317                                      struct wpa_scan_results *scan_res)
5318 {
5319         wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
5320 }
5321
5322
5323 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
5324 {
5325         struct wpa_global *global = wpa_s->global;
5326         int found = 0;
5327         const u8 *peer;
5328
5329         if (global->p2p == NULL)
5330                 return -1;
5331
5332         wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
5333
5334         if (wpa_s->pending_interface_name[0] &&
5335             !is_zero_ether_addr(wpa_s->pending_interface_addr))
5336                 found = 1;
5337
5338         peer = p2p_get_go_neg_peer(global->p2p);
5339         if (peer) {
5340                 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
5341                            MACSTR, MAC2STR(peer));
5342                 p2p_unauthorize(global->p2p, peer);
5343                 found = 1;
5344         }
5345
5346         if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
5347                 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
5348                 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
5349                 found = 1;
5350         }
5351
5352         if (wpa_s->pending_pd_before_join) {
5353                 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
5354                 wpa_s->pending_pd_before_join = 0;
5355                 found = 1;
5356         }
5357
5358         wpas_p2p_stop_find(wpa_s);
5359
5360         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5361                 if (wpa_s == global->p2p_group_formation &&
5362                     (wpa_s->p2p_in_provisioning ||
5363                      wpa_s->parent->pending_interface_type ==
5364                      WPA_IF_P2P_CLIENT)) {
5365                         wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
5366                                    "formation found - cancelling",
5367                                    wpa_s->ifname);
5368                         found = 1;
5369                         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5370                                              wpa_s->parent, NULL);
5371                         if (wpa_s->p2p_in_provisioning) {
5372                                 wpas_group_formation_completed(wpa_s, 0);
5373                                 break;
5374                         }
5375                         wpas_p2p_group_delete(wpa_s,
5376                                               P2P_GROUP_REMOVAL_REQUESTED);
5377                         break;
5378                 }
5379         }
5380
5381         if (!found) {
5382                 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
5383                 return -1;
5384         }
5385
5386         return 0;
5387 }
5388
5389
5390 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
5391 {
5392         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
5393                 return;
5394
5395         wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
5396                    "being available anymore");
5397         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
5398 }
5399
5400
5401 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
5402                                    int freq_24, int freq_5, int freq_overall)
5403 {
5404         struct p2p_data *p2p = wpa_s->global->p2p;
5405         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5406                 return;
5407         p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
5408 }
5409
5410
5411 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
5412 {
5413         u8 peer[ETH_ALEN];
5414         struct p2p_data *p2p = wpa_s->global->p2p;
5415
5416         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5417                 return -1;
5418
5419         if (hwaddr_aton(addr, peer))
5420                 return -1;
5421
5422         return p2p_unauthorize(p2p, peer);
5423 }
5424
5425
5426 /**
5427  * wpas_p2p_disconnect - Disconnect from a P2P Group
5428  * @wpa_s: Pointer to wpa_supplicant data
5429  * Returns: 0 on success, -1 on failure
5430  *
5431  * This can be used to disconnect from a group in which the local end is a P2P
5432  * Client or to end a P2P Group in case the local end is the Group Owner. If a
5433  * virtual network interface was created for this group, that interface will be
5434  * removed. Otherwise, only the configured P2P group network will be removed
5435  * from the interface.
5436  */
5437 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
5438 {
5439
5440         if (wpa_s == NULL)
5441                 return -1;
5442
5443         return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
5444                 -1 : 0;
5445 }
5446
5447
5448 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
5449 {
5450         int ret;
5451
5452         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5453                 return 0;
5454
5455         ret = p2p_in_progress(wpa_s->global->p2p);
5456         if (ret == 0) {
5457                 /*
5458                  * Check whether there is an ongoing WPS provisioning step (or
5459                  * other parts of group formation) on another interface since
5460                  * p2p_in_progress() does not report this to avoid issues for
5461                  * scans during such provisioning step.
5462                  */
5463                 if (wpa_s->global->p2p_group_formation &&
5464                     wpa_s->global->p2p_group_formation != wpa_s) {
5465                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
5466                                 "in group formation",
5467                                 wpa_s->global->p2p_group_formation->ifname);
5468                         ret = 1;
5469                 }
5470         }
5471
5472         return ret;
5473 }
5474
5475
5476 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
5477                               struct wpa_ssid *ssid)
5478 {
5479         if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
5480             eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5481                                  wpa_s->parent, NULL) > 0) {
5482                 /**
5483                  * Remove the network by scheduling the group formation
5484                  * timeout to happen immediately. The teardown code
5485                  * needs to be scheduled to run asynch later so that we
5486                  * don't delete data from under ourselves unexpectedly.
5487                  * Calling wpas_p2p_group_formation_timeout directly
5488                  * causes a series of crashes in WPS failure scenarios.
5489                  */
5490                 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
5491                            "P2P group network getting removed");
5492                 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
5493                                        wpa_s->parent, NULL);
5494         }
5495 }
5496
5497
5498 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
5499                                           const u8 *addr, const u8 *ssid,
5500                                           size_t ssid_len)
5501 {
5502         struct wpa_ssid *s;
5503         size_t i;
5504
5505         for (s = wpa_s->conf->ssid; s; s = s->next) {
5506                 if (s->disabled != 2)
5507                         continue;
5508                 if (ssid &&
5509                     (ssid_len != s->ssid_len ||
5510                      os_memcmp(ssid, s->ssid, ssid_len) != 0))
5511                         continue;
5512                 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
5513                         return s; /* peer is GO in the persistent group */
5514                 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
5515                         continue;
5516                 for (i = 0; i < s->num_p2p_clients; i++) {
5517                         if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
5518                                       addr, ETH_ALEN) == 0)
5519                                 return s; /* peer is P2P client in persistent
5520                                            * group */
5521                 }
5522         }
5523
5524         return NULL;
5525 }
5526
5527
5528 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
5529                                        const u8 *addr)
5530 {
5531         if (addr == NULL)
5532                 return;
5533         wpas_p2p_add_persistent_group_client(wpa_s, addr);
5534 }
5535
5536
5537 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
5538                                         int group_added)
5539 {
5540         struct wpa_supplicant *group = wpa_s;
5541         if (wpa_s->global->p2p_group_formation)
5542                 group = wpa_s->global->p2p_group_formation;
5543         wpa_s = wpa_s->parent;
5544         offchannel_send_action_done(wpa_s);
5545         if (group_added)
5546                 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
5547         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
5548         wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
5549                          wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
5550                          0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
5551                          wpa_s->p2p_persistent_id,
5552                          wpa_s->p2p_pd_before_go_neg,
5553                          wpa_s->p2p_go_ht40);
5554 }
5555
5556
5557 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
5558 {
5559         if (!wpa_s->p2p_fallback_to_go_neg ||
5560             wpa_s->p2p_in_provisioning <= 5)
5561                 return 0;
5562
5563         if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
5564                 return 0; /* peer operating as a GO */
5565
5566         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
5567                 "fallback to GO Negotiation");
5568         wpas_p2p_fallback_to_go_neg(wpa_s, 1);
5569
5570         return 1;
5571 }
5572
5573
5574 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
5575 {
5576         const char *rn, *rn2;
5577         struct wpa_supplicant *ifs;
5578
5579         if (wpa_s->wpa_state > WPA_SCANNING) {
5580                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
5581                         "concurrent operation",
5582                         P2P_CONCURRENT_SEARCH_DELAY);
5583                 return P2P_CONCURRENT_SEARCH_DELAY;
5584         }
5585
5586         if (!wpa_s->driver->get_radio_name)
5587                 return 0;
5588         rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
5589         if (rn == NULL || rn[0] == '\0')
5590                 return 0;
5591
5592         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
5593                 if (ifs == wpa_s || !ifs->driver->get_radio_name)
5594                         continue;
5595
5596                 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
5597                 if (!rn2 || os_strcmp(rn, rn2) != 0)
5598                         continue;
5599                 if (ifs->wpa_state > WPA_SCANNING) {
5600                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
5601                                 "delay due to concurrent operation on "
5602                                 "interface %s",
5603                                 P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
5604                         return P2P_CONCURRENT_SEARCH_DELAY;
5605                 }
5606         }
5607
5608         return 0;
5609 }